UK: /users endpoint lists all users - info is public
UK: add view_profile permission to user profile model
UK: add view_profile to manager and owner permissions
UK: UserProfilePermissions should also allow anon users
UK: return all profiles, do not include Anonymous user in the api enpoint
UK: exclude email from serializer data if user has view_profile permissions
UK: test anon access to profile endpoint
UK: test anon to /users endpoint
UK: assign permissions to person creating a user profile, closes #331
UK: use settings.ANONYMOUS_USER_ID
UK: management command to set Owner permissions to existing users, closes #272
UK: assert email not in returned profile data for anon users
Merge pull request #345 from onaio/331-public-user-profiles

make user profiles publicly accessible, resolves #331