Merge pull request #5 from tue-savvy/master

[Savvycom-iOS] - Added members screen
new login screen
Merge branch 'master' of https://github.com/cloverstudio/Spika-iOS
multiple server support ( not working )
implemented server list, not done
fixed bug on server change
Deleted unnecessary code
implemented server list to sign up vc
implemented server list choice to forgot password vc
added server list choice to forgot password vc
fixed issue where server label would not display chosen server
updated 'custom url' placeholder text; placeholder color is now gray
Fixed button position for signup vc
added constraints in server list nib, added text field delegates to SignUp vc
- Provide group id when construct UsersInGroupViewController
Merge branch 'master' of https://github.com/cloverstudio/Spika-iOS
- Fix layout constrains in GroupProfileView