Added to JIRA under sprint Spaces V: Perms Strike Back.

1. Roles: Organize alphabetically in the UI. 
2. A viewer shouldn’t be able to add a dataset to a space if it doesn’t have the permission. Add the permission check in create space and edit space for datasets and collections. 
3. Login with google and Facebook. 
4. Add Follow/Unfollow button to the spaces
5. Fix the UI for the collections that are being followed. 
6. Fix cases in checkPermission that are vulnerable to None.get calls CATS-75

Spaces–Other Bugs

1. Change color of badges holding the resource counts (on home page, after login). Currently, is same color as the associated resources; red.  But the latter are clickable links, leading user to believe that the badges are clickable too, although they aren't.