added AFNetWorking, MBProgressHub, data models, and Enabled Facebook login.
Merge branch 'master' of https://github.com/adamdahan/StyleSnaps2 into activityCells

Conflicts:
	StyleSnaps/UserDetailsViewController.m
added a constant file, to make things clear
Merge branch 'master' of https://github.com/adamdahan/StyleSnaps2 into activityCells

Conflicts:
	StyleSnaps/SideProfileViewController.m
added side nag setting, except logout
added terms && condicionts
added SnapManager
Merge pull request #8 from adamdahan/facebook_login

Facebook login