Adapted admin for new StateTransitionMachine

* Removed as well all the AbstractEntity dependencies
* Added specific interfaces casting
Merge pull request #57 from elcodi/feature/state-transition-machine

Adapted admin for new StateTransitionMachine
migrate to token storage
fix event namespaces
Merge pull request #48 from elcodi/fix/security-context

Migrate from SecurityContext to TokenStorage
add ElcodiPageBundle
enable text extension for twig
add AdminPageBundle
add wysiwyg5 to Page:edit content
allow other wysiwyg with a class

add `text-editor` to any html element classes, and wysiwyg5 will be applied to them automatically.
add row number to content editor
fix new Page
git-cc:save:modified