diff --git a/.travis.yml b/.travis.yml
index 8e42690..e468052 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ language: php
 sudo: required
 
 php:
-  - 5.5
+  - 5.6
   - 7.3
 
 env:
diff --git a/README.md b/README.md
index b2d6aa7..0669d5e 100755
--- a/README.md
+++ b/README.md
@@ -54,11 +54,9 @@ Together with a dedicated [μlogger mobile client](https://github.com/bfabiszews
   - `docker build -t ulogger .`
   - `docker run -d --name ulogger -p 8080:80 -p 8081:3306 --expose 3306 ulogger`
 - Use environment variables (or create `.env` file in `.tests/` folder) to set up connection details (below database credentials are docker defaults)
-  - `DB_HOST=127.0.0.1`
-  - `DB_NAME=ulogger`
+  - `DB_DSN="mysql:host=127.0.0.1;port=8081;dbname=ulogger;charset=utf8"`
   - `DB_USER=ulogger`
   - `DB_PASS=secret2`
-  - `DB_PORT=8081`
   - `ULOGGER_URL="http://127.0.0.1:8080"`
 - Run tests
   - `./vendor/bin/phpunit -c .tests/phpunit.xml`
diff --git a/composer.json b/composer.json
index d8c9c56..f4480ef 100644
--- a/composer.json
+++ b/composer.json
@@ -1,13 +1,13 @@
 {
     "require": {
-        "phpunit/phpunit": "^5.7",
-        "vlucas/phpdotenv": "^2.4",
-        "guzzlehttp/guzzle": "^6.3"
+        "ulrichsg/getopt-php": "^3.2"
     },
     "scripts": {
         "test": "./vendor/bin/phpunit"
     },
     "require-dev": {
-        "phpunit/dbunit": "^2.0"
+        "phpunit/phpunit": "^5.7",
+        "vlucas/phpdotenv": "^3.3",
+        "guzzlehttp/guzzle": "^6.3"
     }
 }
diff --git a/composer.lock b/composer.lock
index d3e068e..4b46a7d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,36 +4,84 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "2d8c5cc5e1d061a121d0f1dc7a602ac4",
+    "content-hash": "d0a42401c92b52fba7604da126e30ef1",
     "packages": [
         {
-            "name": "doctrine/instantiator",
-            "version": "1.0.5",
+            "name": "ulrichsg/getopt-php",
+            "version": "3.2.2",
             "source": {
                 "type": "git",
-                "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d"
+                "url": "https://github.com/getopt-php/getopt-php.git",
+                "reference": "9df490db25bd192d074f5de4210e232a8ddbeda0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/8e884e78f9f0eb1329e445619e04456e64d8051d",
-                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d",
+                "url": "https://api.github.com/repos/getopt-php/getopt-php/zipball/9df490db25bd192d074f5de4210e232a8ddbeda0",
+                "reference": "9df490db25bd192d074f5de4210e232a8ddbeda0",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3,<8.0-DEV"
+                "ext-mbstring": "*",
+                "php": ">=5.4.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8",
+                "squizlabs/php_codesniffer": "^2.7"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "GetOpt\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ulrich Schmidt-Goertz",
+                    "email": "ulrich@schmidt-goertz.de"
+                },
+                {
+                    "name": "Thomas Flori",
+                    "email": "thflori@gmail.com"
+                }
+            ],
+            "description": "Command line arguments parser for PHP 5.4 - 7.1",
+            "homepage": "http://getopt-php.github.io/getopt-php",
+            "time": "2019-01-22T08:01:50+00:00"
+        }
+    ],
+    "packages-dev": [
+        {
+            "name": "doctrine/instantiator",
+            "version": "1.1.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/instantiator.git",
+                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
+                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1"
             },
             "require-dev": {
                 "athletic/athletic": "~0.1.8",
                 "ext-pdo": "*",
                 "ext-phar": "*",
-                "phpunit/phpunit": "~4.0",
-                "squizlabs/php_codesniffer": "~2.0"
+                "phpunit/phpunit": "^6.2.3",
+                "squizlabs/php_codesniffer": "^3.0.2"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.2.x-dev"
                 }
             },
             "autoload": {
@@ -58,20 +106,20 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2015-06-14T21:17:01+00:00"
+            "time": "2017-07-22T11:58:36+00:00"
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "6.3.0",
+            "version": "6.3.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699"
+                "reference": "407b0cb880ace85c9b63c5f9551db498cb2d50ba"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/f4db5a78a5ea468d4831de7f0bf9d9415e348699",
-                "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/407b0cb880ace85c9b63c5f9551db498cb2d50ba",
+                "reference": "407b0cb880ace85c9b63c5f9551db498cb2d50ba",
                 "shasum": ""
             },
             "require": {
@@ -81,7 +129,7 @@
             },
             "require-dev": {
                 "ext-curl": "*",
-                "phpunit/phpunit": "^4.0 || ^5.0",
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.4 || ^7.0",
                 "psr/log": "^1.0"
             },
             "suggest": {
@@ -90,7 +138,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "6.2-dev"
+                    "dev-master": "6.3-dev"
                 }
             },
             "autoload": {
@@ -123,7 +171,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2017-06-22T18:50:49+00:00"
+            "time": "2018-04-22T15:46:56+00:00"
         },
         {
             "name": "guzzlehttp/promises",
@@ -178,32 +226,33 @@
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "1.4.2",
+            "version": "1.5.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c"
+                "reference": "9f83dded91781a01c63574e387eaa769be769115"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/f5b8a8512e2b58b0071a7280e39f14f72e05d87c",
-                "reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/9f83dded91781a01c63574e387eaa769be769115",
+                "reference": "9f83dded91781a01c63574e387eaa769be769115",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.4.0",
-                "psr/http-message": "~1.0"
+                "psr/http-message": "~1.0",
+                "ralouphie/getallheaders": "^2.0.5"
             },
             "provide": {
                 "psr/http-message-implementation": "1.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.0"
+                "phpunit/phpunit": "~4.8.36 || ^5.7.27 || ^6.5.8"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.4-dev"
+                    "dev-master": "1.5-dev"
                 }
             },
             "autoload": {
@@ -233,47 +282,54 @@
             "keywords": [
                 "http",
                 "message",
+                "psr-7",
                 "request",
                 "response",
                 "stream",
                 "uri",
                 "url"
             ],
-            "time": "2017-03-20T17:10:46+00:00"
+            "time": "2018-12-04T20:46:45+00:00"
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.6.1",
+            "version": "1.8.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "8e6e04167378abf1ddb4d3522d8755c5fd90d102"
+                "reference": "3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/8e6e04167378abf1ddb4d3522d8755c5fd90d102",
-                "reference": "8e6e04167378abf1ddb4d3522d8755c5fd90d102",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8",
+                "reference": "3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.4.0"
+                "php": "^7.1"
+            },
+            "replace": {
+                "myclabs/deep-copy": "self.version"
             },
             "require-dev": {
-                "doctrine/collections": "1.*",
-                "phpunit/phpunit": "~4.1"
+                "doctrine/collections": "^1.0",
+                "doctrine/common": "^2.6",
+                "phpunit/phpunit": "^7.1"
             },
             "type": "library",
             "autoload": {
                 "psr-4": {
                     "DeepCopy\\": "src/DeepCopy/"
-                }
+                },
+                "files": [
+                    "src/DeepCopy/deep_copy.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
             "description": "Create deep copies (clones) of your objects",
-            "homepage": "https://github.com/myclabs/DeepCopy",
             "keywords": [
                 "clone",
                 "copy",
@@ -281,20 +337,20 @@
                 "object",
                 "object graph"
             ],
-            "time": "2017-04-12T18:52:22+00:00"
+            "time": "2018-06-11T23:09:50+00:00"
         },
         {
             "name": "phpdocumentor/reflection-common",
-            "version": "1.0",
+            "version": "1.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionCommon.git",
-                "reference": "144c307535e82c8fdcaacbcfc1d6d8eeb896687c"
+                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/144c307535e82c8fdcaacbcfc1d6d8eeb896687c",
-                "reference": "144c307535e82c8fdcaacbcfc1d6d8eeb896687c",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6",
+                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6",
                 "shasum": ""
             },
             "require": {
@@ -335,33 +391,39 @@
                 "reflection",
                 "static analysis"
             ],
-            "time": "2015-12-27T11:43:31+00:00"
+            "time": "2017-09-11T18:02:19+00:00"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
-            "version": "3.2.2",
+            "version": "4.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "4aada1f93c72c35e22fb1383b47fee43b8f1d157"
+                "reference": "94fd0001232e47129dd3504189fa1c7225010d08"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/4aada1f93c72c35e22fb1383b47fee43b8f1d157",
-                "reference": "4aada1f93c72c35e22fb1383b47fee43b8f1d157",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/94fd0001232e47129dd3504189fa1c7225010d08",
+                "reference": "94fd0001232e47129dd3504189fa1c7225010d08",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5",
-                "phpdocumentor/reflection-common": "^1.0@dev",
-                "phpdocumentor/type-resolver": "^0.3.0",
+                "php": "^7.0",
+                "phpdocumentor/reflection-common": "^1.0.0",
+                "phpdocumentor/type-resolver": "^0.4.0",
                 "webmozart/assert": "^1.0"
             },
             "require-dev": {
-                "mockery/mockery": "^0.9.4",
-                "phpunit/phpunit": "^4.4"
+                "doctrine/instantiator": "~1.0.5",
+                "mockery/mockery": "^1.0",
+                "phpunit/phpunit": "^6.4"
             },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.x-dev"
+                }
+            },
             "autoload": {
                 "psr-4": {
                     "phpDocumentor\\Reflection\\": [
@@ -380,20 +442,20 @@
                 }
             ],
             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2017-08-08T06:39:58+00:00"
+            "time": "2017-11-30T07:14:17+00:00"
         },
         {
             "name": "phpdocumentor/type-resolver",
-            "version": "0.3.0",
+            "version": "0.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/TypeResolver.git",
-                "reference": "fb3933512008d8162b3cdf9e18dba9309b7c3773"
+                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/fb3933512008d8162b3cdf9e18dba9309b7c3773",
-                "reference": "fb3933512008d8162b3cdf9e18dba9309b7c3773",
+                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/9c977708995954784726e25d0cd1dddf4e65b0f7",
+                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7",
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             },
             "require": {
@@ -427,37 +489,87 @@
                     "email": "me@mikevanriel.com"
                 }
             ],
-            "time": "2017-06-03T08:32:36+00:00"
+            "time": "2017-07-14T14:27:02+00:00"
         },
         {
-            "name": "phpspec/prophecy",
-            "version": "v1.7.0",
+            "name": "phpoption/phpoption",
+            "version": "1.5.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "93d39f1f7f9326d746203c7c056f300f7f126073"
+                "url": "https://github.com/schmittjoh/php-option.git",
+                "reference": "94e644f7d2051a5f0fcf77d81605f152eecff0ed"
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             "dist": {
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-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/93d39f1f7f9326d746203c7c056f300f7f126073",
-                "reference": "93d39f1f7f9326d746203c7c056f300f7f126073",
+                "url": "https://api.github.com/repos/schmittjoh/php-option/zipball/94e644f7d2051a5f0fcf77d81605f152eecff0ed",
+                "reference": "94e644f7d2051a5f0fcf77d81605f152eecff0ed",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.7.*"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.3-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "PhpOption\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache2"
+            ],
+            "authors": [
+                {
+                    "name": "Johannes M. Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                }
+            ],
+            "description": "Option Type for PHP",
+            "keywords": [
+                "language",
+                "option",
+                "php",
+                "type"
+            ],
+            "time": "2015-07-25T16:39:46+00:00"
+        },
+        {
+            "name": "phpspec/prophecy",
+            "version": "1.8.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpspec/prophecy.git",
+                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
+                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
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             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
                 "php": "^5.3|^7.0",
-                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2",
-                "sebastian/comparator": "^1.1|^2.0",
+                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2|^4.0",
+                "sebastian/comparator": "^1.1|^2.0|^3.0",
                 "sebastian/recursion-context": "^1.0|^2.0|^3.0"
             },
             "require-dev": {
                 "phpspec/phpspec": "^2.5|^3.2",
-                "phpunit/phpunit": "^4.8 || ^5.6.5"
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5 || ^7.1"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.6.x-dev"
+                    "dev-master": "1.8.x-dev"
                 }
             },
             "autoload": {
@@ -490,7 +602,7 @@
                 "spy",
                 "stub"
             ],
-            "time": "2017-03-02T20:05:34+00:00"
+            "time": "2018-08-05T17:53:17+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -557,16 +669,16 @@
         },
         {
             "name": "phpunit/php-file-iterator",
-            "version": "1.4.2",
+            "version": "1.4.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-file-iterator.git",
-                "reference": "3cc8f69b3028d0f96a9078e6295d86e9bf019be5"
+                "reference": "730b01bc3e867237eaac355e06a36b85dd93a8b4"
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-                "url": "https://api.github.com/repos/sebastianbergmann/php-file-iterator/zipball/3cc8f69b3028d0f96a9078e6295d86e9bf019be5",
-                "reference": "3cc8f69b3028d0f96a9078e6295d86e9bf019be5",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-file-iterator/zipball/730b01bc3e867237eaac355e06a36b85dd93a8b4",
+                "reference": "730b01bc3e867237eaac355e06a36b85dd93a8b4",
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             },
             "require": {
@@ -600,7 +712,7 @@
                 "filesystem",
                 "iterator"
             ],
-            "time": "2016-10-03T07:40:28+00:00"
+            "time": "2017-11-27T13:52:08+00:00"
         },
         {
             "name": "phpunit/php-text-template",
@@ -694,29 +806,29 @@
         },
         {
             "name": "phpunit/php-token-stream",
-            "version": "1.4.11",
+            "version": "2.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-token-stream.git",
-                "reference": "e03f8f67534427a787e21a385a67ec3ca6978ea7"
+                "reference": "791198a2c6254db10131eecfe8c06670700904db"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/e03f8f67534427a787e21a385a67ec3ca6978ea7",
-                "reference": "e03f8f67534427a787e21a385a67ec3ca6978ea7",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/791198a2c6254db10131eecfe8c06670700904db",
+                "reference": "791198a2c6254db10131eecfe8c06670700904db",
                 "shasum": ""
             },
             "require": {
                 "ext-tokenizer": "*",
-                "php": ">=5.3.3"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.2"
+                "phpunit/phpunit": "^6.2.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.4-dev"
+                    "dev-master": "2.0-dev"
                 }
             },
             "autoload": {
@@ -739,20 +851,20 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2017-02-27T10:12:30+00:00"
+            "time": "2017-11-27T05:48:46+00:00"
         },
         {
             "name": "phpunit/phpunit",
-            "version": "5.7.21",
+            "version": "5.7.27",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "3b91adfb64264ddec5a2dee9851f354aa66327db"
+                "reference": "b7803aeca3ccb99ad0a506fa80b64cd6a56bbc0c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/3b91adfb64264ddec5a2dee9851f354aa66327db",
-                "reference": "3b91adfb64264ddec5a2dee9851f354aa66327db",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/b7803aeca3ccb99ad0a506fa80b64cd6a56bbc0c",
+                "reference": "b7803aeca3ccb99ad0a506fa80b64cd6a56bbc0c",
                 "shasum": ""
             },
             "require": {
@@ -776,8 +888,8 @@
                 "sebastian/global-state": "^1.1",
                 "sebastian/object-enumerator": "~2.0",
                 "sebastian/resource-operations": "~1.0",
-                "sebastian/version": "~1.0.3|~2.0",
-                "symfony/yaml": "~2.1|~3.0"
+                "sebastian/version": "^1.0.6|^2.0.1",
+                "symfony/yaml": "~2.1|~3.0|~4.0"
             },
             "conflict": {
                 "phpdocumentor/reflection-docblock": "3.0.2"
@@ -821,7 +933,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-06-21T08:11:54+00:00"
+            "time": "2018-02-01T05:50:59+00:00"
         },
         {
             "name": "phpunit/phpunit-mock-objects",
@@ -880,6 +992,7 @@
                 "mock",
                 "xunit"
             ],
+            "abandoned": true,
             "time": "2017-06-30T09:13:00+00:00"
         },
         {
@@ -932,6 +1045,46 @@
             ],
             "time": "2016-08-06T14:39:51+00:00"
         },
+        {
+            "name": "ralouphie/getallheaders",
+            "version": "2.0.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/ralouphie/getallheaders.git",
+                "reference": "5601c8a83fbba7ef674a7369456d12f1e0d0eafa"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/ralouphie/getallheaders/zipball/5601c8a83fbba7ef674a7369456d12f1e0d0eafa",
+                "reference": "5601c8a83fbba7ef674a7369456d12f1e0d0eafa",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~3.7.0",
+                "satooshi/php-coveralls": ">=1.0"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "src/getallheaders.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ralph Khattar",
+                    "email": "ralph.khattar@gmail.com"
+                }
+            ],
+            "description": "A polyfill for getallheaders.",
+            "time": "2016-02-11T07:05:27+00:00"
+        },
         {
             "name": "sebastian/code-unit-reverse-lookup",
             "version": "1.0.1",
@@ -1446,24 +1599,86 @@
             "time": "2016-10-03T07:35:21+00:00"
         },
         {
-            "name": "symfony/yaml",
-            "version": "v3.3.6",
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.10.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/yaml.git",
-                "reference": "ddc23324e6cfe066f3dd34a37ff494fa80b617ed"
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/ddc23324e6cfe066f3dd34a37ff494fa80b617ed",
-                "reference": "ddc23324e6cfe066f3dd34a37ff494fa80b617ed",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/e3d826245268269cd66f8326bd8bc066687b4a19",
+                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5.9"
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.9-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                },
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "time": "2018-08-06T14:22:27+00:00"
+        },
+        {
+            "name": "symfony/yaml",
+            "version": "v4.2.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/yaml.git",
+                "reference": "d461670ee145092b7e2a56c1da7118f19cadadb0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/d461670ee145092b7e2a56c1da7118f19cadadb0",
+                "reference": "d461670ee145092b7e2a56c1da7118f19cadadb0",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1.3",
+                "symfony/polyfill-ctype": "~1.8"
+            },
+            "conflict": {
+                "symfony/console": "<3.4"
             },
             "require-dev": {
-                "symfony/console": "~2.8|~3.0"
+                "symfony/console": "~3.4|~4.0"
             },
             "suggest": {
                 "symfony/console": "For validating YAML files using the lint command"
@@ -1471,7 +1686,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "4.2-dev"
                 }
             },
             "autoload": {
@@ -1498,32 +1713,34 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2017-07-23T12:43:26+00:00"
+            "time": "2019-01-16T20:35:37+00:00"
         },
         {
             "name": "vlucas/phpdotenv",
-            "version": "v2.4.0",
+            "version": "v3.3.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vlucas/phpdotenv.git",
-                "reference": "3cc116adbe4b11be5ec557bf1d24dc5e3a21d18c"
+                "reference": "1ee9369cfbf26cfcf1f2515d98f15fab54e9647a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/3cc116adbe4b11be5ec557bf1d24dc5e3a21d18c",
-                "reference": "3cc116adbe4b11be5ec557bf1d24dc5e3a21d18c",
+                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/1ee9369cfbf26cfcf1f2515d98f15fab54e9647a",
+                "reference": "1ee9369cfbf26cfcf1f2515d98f15fab54e9647a",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
+                "php": "^5.4 || ^7.0",
+                "phpoption/phpoption": "^1.5",
+                "symfony/polyfill-ctype": "^1.9"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8 || ^5.0"
+                "phpunit/phpunit": "^4.8.35 || ^5.0 || ^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.4-dev"
+                    "dev-master": "3.3-dev"
                 }
             },
             "autoload": {
@@ -1533,7 +1750,7 @@
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "BSD-3-Clause-Attribution"
+                "BSD-3-Clause"
             ],
             "authors": [
                 {
@@ -1548,24 +1765,25 @@
                 "env",
                 "environment"
             ],
-            "time": "2016-09-01T10:05:43+00:00"
+            "time": "2019-01-30T10:43:17+00:00"
         },
         {
             "name": "webmozart/assert",
-            "version": "1.2.0",
+            "version": "1.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozart/assert.git",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f"
+                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/2db61e59ff05fe5126d152bd0655c9ea113e550f",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/83e253c8e0be5b0257b881e1827274667c5c17a9",
+                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0"
+                "php": "^5.3.3 || ^7.0",
+                "symfony/polyfill-ctype": "^1.8"
             },
             "require-dev": {
                 "phpunit/phpunit": "^4.6",
@@ -1598,64 +1816,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2016-11-23T20:04:58+00:00"
-        }
-    ],
-    "packages-dev": [
-        {
-            "name": "phpunit/dbunit",
-            "version": "2.0.3",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/sebastianbergmann/dbunit.git",
-                "reference": "5c35d74549c21ba55d0ea74ba89d191a51f8cf25"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/dbunit/zipball/5c35d74549c21ba55d0ea74ba89d191a51f8cf25",
-                "reference": "5c35d74549c21ba55d0ea74ba89d191a51f8cf25",
-                "shasum": ""
-            },
-            "require": {
-                "ext-pdo": "*",
-                "ext-simplexml": "*",
-                "php": "^5.4 || ^7.0",
-                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0",
-                "symfony/yaml": "^2.1 || ^3.0"
-            },
-            "bin": [
-                "dbunit"
-            ],
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "2.0.x-dev"
-                }
-            },
-            "autoload": {
-                "classmap": [
-                    "src/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sb@sebastian-bergmann.de",
-                    "role": "lead"
-                }
-            ],
-            "description": "DbUnit port for PHP/PHPUnit to support database interaction testing.",
-            "homepage": "https://github.com/sebastianbergmann/dbunit/",
-            "keywords": [
-                "database",
-                "testing",
-                "xunit"
-            ],
-            "time": "2016-12-02T14:39:14+00:00"
+            "time": "2018-12-25T11:19:39+00:00"
         }
     ],
     "aliases": [],
diff --git a/scripts/README.import_cli b/scripts/README.import_cli
new file mode 100644
index 0000000..89eb993
--- /dev/null
+++ b/scripts/README.import_cli
@@ -0,0 +1,12 @@
+Script for importing GPX files on command line
+
+Usage: import_cli.php [options] <gpx> [<gpx>...]
+
+Operands:
+  <gpx>  One or more GPX files to import
+
+Options:
+  -h, --help                   Show usage/help
+  -u, --user-id [<arg>]        Which user to import the track(s) for (default: 1)
+  -e, --import-existing-track  Import already existing tracks (based on track name)
+  -l, --skip-last-track        Skip the last track (for special use cases)
diff --git a/utils/import_cli.php b/scripts/import_cli.php
similarity index 89%
rename from utils/import_cli.php
rename to scripts/import_cli.php
index 7a50c8b..cd811af 100755
--- a/utils/import_cli.php
+++ b/scripts/import_cli.php
@@ -26,14 +26,21 @@ require_once(dirname(__DIR__) . "/helpers/auth.php");
 require_once(ROOT_DIR . "/helpers/track.php");
 require_once(ROOT_DIR . "/helpers/position.php");
 require_once(ROOT_DIR . "/helpers/utils.php");
-require_once(ROOT_DIR . "/lang.php");
-require_once(ROOT_DIR . '/vendor/autoload.php');
+require_once(ROOT_DIR . "/helpers/config.php");
+require_once(ROOT_DIR . "/helpers/lang.php");
+if (file_exists(ROOT_DIR . '/vendor/autoload.php')) {
+  require_once(ROOT_DIR . '/vendor/autoload.php');
+}
 
 // check we are running in CLI mode
 if (PHP_SAPI != 'cli') {
   exit('Call me on CLI only!' . PHP_EOL);
 }
 
+if (!class_exists("GetOpt\GetOpt")) {
+  exit('This script needs ulrichsg/getopt-php package. Please install dependencies via Composer.' . PHP_EOL);
+}
+
 // set up argument parsing
 $getopt = new GetOpt();
 $getopt->addOptions([
@@ -64,7 +71,7 @@ try {
 } catch (Exception $exception) {
   // be nice if the user just asked for help
   if (!$getopt->getOption('help')) {
-    exit('ERROR: '.$exception->getMessage().PHP_EOL);
+    exit('ERROR: ' . $exception->getMessage() . PHP_EOL);
   }
 }
 
@@ -90,20 +97,22 @@ foreach ($gpxFiles as $i => $gpxFile) {
   if (!$getopt->getOption('import-existing-track')) {
     foreach ($tracksArr as $track) {
       if ($track->name === $gpxName) {
-        print('WARNING: '.$gpxName.' already present, skipping...'.PHP_EOL);
+        print('WARNING: ' . $gpxName . ' already present, skipping...' . PHP_EOL);
         continue 2;
       }
     }
   }
 
-  print('importing '.$gpxFile.'...'.PHP_EOL);
+  print('importing ' . $gpxFile.'...' . PHP_EOL);
+
+  $lang = (new uLang(uConfig::$lang))->getStrings();
 
   $gpx = false;
   libxml_use_internal_errors(true);
   if ($gpxFile && file_exists($gpxFile)) {
     $gpx = simplexml_load_file($gpxFile);
   }
-  
+
   if ($gpx === false) {
     $message = $lang["iparsefailure"];
     $parserMessages = [];
@@ -122,7 +131,7 @@ foreach ($gpxFiles as $i => $gpxFile) {
   else if (empty($gpx->trk)) {
     uUtils::exitWithError($lang["idatafailure"]);
   }
-  
+
   $trackCnt = 0;
   foreach ($gpx->trk as $trk) {
     $trackName = empty($trk->name) ? $gpxName : (string) $trk->name;
@@ -134,7 +143,7 @@ foreach ($gpxFiles as $i => $gpxFile) {
     }
     $track = new uTrack($trackId);
     $posCnt = 0;
-  
+
     foreach($trk->trkseg as $segment) {
       foreach($segment->trkpt as $point) {
         if (!isset($point["lat"]) || !isset($point["lon"])) {