dicctionary en-da for platform
translation functionality added. But the translation of the names of the applications and the permisions of the applications should be done manually
minor refactor of register method to allow social pipeline to use the same function.
Social registration now working. Now it needs a facebook button for login as well.
Merge branch 'devel' of https://github.com/MIT-Model-Open-Data-and-Identity-System/SensibleData-Platform into facebook-login

Conflicts:
	sensible_data_platform/oauth2_authorization_server/oauth2.py
	sensible_data_platform/sensible_data_platform/wsgi.py