Merge branch '25-implement-gitlab-pipeline-as-ci' into 'develop'

FEATURE: Gitlab ci initialized (including phpunit test)

Closes #25

See merge request !26

.gitlab-ci.yml

+stages:
+  - test
+
+cache:
+  paths:
+    - vendor/
+
+test:5.3: &PHP-UNITTESTING
+  image: tetraweb/php:5.3
+  stage: test
+  tags:
+    - docker
+  variables:
+    TIMEZONE: "Europe/Berlin"
+    WITH_XDEBUG: "true"
+  before_script:
+    - apt-get update; apt-get install -y zip unzip
+    - composer install --optimize-autoloader --no-interaction --no-ansi --prefer-dist
+  script:
+    - ./vendor/bin/phpunit --coverage-text --colors=never
+test:5.4:
+  <<: *PHP-UNITTESTING
+  image: tetraweb/php:5.4
+test:5.5:
+  <<: *PHP-UNITTESTING
+  image: tetraweb/php:5.5
+test:5.6:
+  <<: *PHP-UNITTESTING
+  image: tetraweb/php:5.6
+test:7.0:
+  <<: *PHP-UNITTESTING
+  image: tetraweb/php:7.0
+test:7.1:
+  <<: *PHP-UNITTESTING
+  image: tetraweb/php:7.1
+test:latest:
+  <<: *PHP-UNITTESTING
+  image: tetraweb/php:latest

README.md

@@ -3,7 +3,7 @@ About
 
 Composer plugin installs [PHP_CodeSniffer](https://github.com/squizlabs/PHP_CodeSniffer) Standards.
 
-[![Latest Stable Version](https://poser.pugx.org/higidi/composer-phpcodesniffer-standards-plugin/v/stable)](https://packagist.org/packages/higidi/composer-phpcodesniffer-standards-plugin) [![Total Downloads](https://poser.pugx.org/higidi/composer-phpcodesniffer-standards-plugin/downloads)](https://packagist.org/packages/higidi/composer-phpcodesniffer-standards-plugin) [![License](https://poser.pugx.org/higidi/composer-phpcodesniffer-standards-plugin/license)](https://packagist.org/packages/higidi/composer-phpcodesniffer-standards-plugin)
+[![build status](https://git.higidi.com/higidi/composer-phpcodesniffer-standards-plugin/badges/master/build.svg)](https://git.higidi.com/higidi/composer-phpcodesniffer-standards-plugin/commits/master) [![coverage report](https://git.higidi.com/higidi/composer-phpcodesniffer-standards-plugin/badges/master/coverage.svg)](https://git.higidi.com/higidi/composer-phpcodesniffer-standards-plugin/commits/master) [![Latest Stable Version](https://poser.pugx.org/higidi/composer-phpcodesniffer-standards-plugin/v/stable)](https://packagist.org/packages/higidi/composer-phpcodesniffer-standards-plugin) [![Total Downloads](https://poser.pugx.org/higidi/composer-phpcodesniffer-standards-plugin/downloads)](https://packagist.org/packages/higidi/composer-phpcodesniffer-standards-plugin) [![License](https://poser.pugx.org/higidi/composer-phpcodesniffer-standards-plugin/license)](https://packagist.org/packages/higidi/composer-phpcodesniffer-standards-plugin)
 
 Requirements
 ------------
@@ -23,4 +23,4 @@ _TODO_
 Issues
 ------
 
-Bug reports and feature requests can be submitted on the [Issue Tracker](https://git.higidi.com/higidi/composer-phpcodesniffer-standards-plugin/issues) 
+Bug reports and feature requests can be submitted on the [Issue Tracker](https://git.higidi.com/higidi/composer-phpcodesniffer-standards-plugin/issues) 
\ No newline at end of file