[BC Break] Remove frontendmanager, rework basic controller service tests, add default form trait
Fix class-based controller tests
Update apidoc handler
[BC Break] Update authorizationchecker to use new form for mayCreate

Update entityrepository test for new behavior
Add resource manager secured by a authorization checker
Update twig controllervariables
Update route trait tests
[BC Break] Remove all compiler passes
Raise minimum php version to 5.4, because traits are used
Fix tests marked as risky
Add tests for DefaultFormTrait
Coverage ignore route caching
[BC Break] Remove EntityRepository::search()
[BC Break] Remove PageableInterface and SearchableResourceManagerInterface
Add test for SecuredResourceManager
HHVM complains about this abstract function being in a public interface
... and HHVM also complains about getFormType()

Failed job: https://travis-ci.org/vierbergenlars/VlRadRestBundle/jobs/37824534
Another round of fixes for HHVM. getRouteName() & getSerializationGroups()
Add getFormFactory() method in RadRestController. It is the same for all controllers.
Clean up orphaned fixtures