Fix for #684

Fixes #684
Update Admingenerator.gr.yml

Fixed some errors and added some missing translations
Merge pull request #687 from crash21/patch-2

Update Admingenerator.gr.yml
A controller method should not be public if not *Action
Restric font-awesome version (use Bootstrap2 version)
Merge pull request #688 from sescandell/patch-fontawesome

Restrict font-awesome version (use Bootstrap2 version)
Throw NotFoundHttpException if object/batch action doesn't exists (instad of a FatalError)
Make more explicit debug message.
CS Fix
Merge pull request #689 from sescandell/fix-undefinedObjectActions

Throw NotFoundHttpException if object/batch action doesn't exist
Merge branch 'master' of git://github.com/symfony2admingenerator/AdmingeneratorGeneratorBundle