Work on account tabs, contributions and permissions.
Updated permissions validator to give info output.
Reshaped permissions.
Exposed user validator for the backend.
Localized and updated user permissions.
Fixed indexing bug with user profiles.
Added permissions for user activation.
Language and UX-related improvements.
Minor changes following own CR.
Another meta data minor fix.
Changes following CR.
Merge pull request #71 from my-koop/mg_accounttabs

Unification of the user profile, the contributions and the permissions