Merge pull request #6 from codeclimate/QUA-463/upgrade-base-docker-image

QUA-463: Updated base Docker image for plugin 'Sonar PHP'

Fix classpath (#4)

Renamed wrapper (#3)

PHP7 support (#2)

* Add test for php7 support

* Bump sonar-php-plugin: not latest version, but the most recent with a compatible API and php7 support

Merge pull request #1 from codeclimate/init

Init