Merge tag 'v0.5' into develop

v0.5
Remove specific location for log and cache dir. refs #43
Replace AccessDeniedHttpException by AccessDeniedException. refs #44
Refactoring of controller del methods. refs #45
Remove config.php file. refs #46
Add travis CI for multiple php version. refs #40
Add travis CI for multiple php version. refs #40
Merge .travis.yml file
Merge .travis.yml file
Merge .travis.yml file
Update .travis.yml
Update .travis.yml
Update Travis CI
Update .travis.yml
Update .travis.yml
Update .travis.yml
Update .travis.yml
Notice message for variable not passed by reference
Update .travis.yml
Update .travis.yml