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
Adaptation for translatable entities

* Created translatable formTypes for Product and Categories
* Some minor fixes
* Included Elcodi BambooBundle and Bamboo special customizations