Edit Profile: User Timezones shown

1. bug fixed: Edit profile shows the user timezones dropdown, if constant ENABLE_USER_TIMEZONES is not set.
![2014-12-05_16h09_42](https://cloud.githubusercontent.com/assets/8862838/5318074/334bb698-7c9d-11e4-8bb7-311c4756ba38.png)



2. If there are more languages installed, its good to show a language dropdown list. So the user can edit the preffered language.
![2014-12-05_16h41_53](https://cloud.githubusercontent.com/assets/8862838/5318124/ae243aca-7c9d-11e4-84d8-3daced2e0076.png)