user authentication (local & cybecoach)

- [x] user can register (and will auto registered to cybercoach)
- [x] user can delete his account (auto delete in cybercoach)
- [x] user can change account data
- [x] bootstraped da views

BUGS
- [x] user cannot change his password => got a cybercoach authorization error, don't know where the error is, maybe somebody has an idea