travis integration

Contains the following changes:

* phpunit config (with composer and travis setup)
* activate codesniffer (composer and travis setup)
* add readme with travis badge
* remove heaps of generated files and add them to .gitignore
* fix lots of files that violated the standard
* remove app controllers methods (slated for reimplementation with RoutingBundle)

This PR contains what we need to start implementing phpunit tests as well as working codesniffing using multiple sniffer standards (ENTB, PSR1 & PSR2).