Create read-only serializer to handle User/UserProfile data
together.
Refactor GET accounts to use the new read-only joint serializer
Fix tests to check for new expanded user info
Update tests in teams/tests/test_views.py to test for both
public and private profiles on expands user
Update serializer to utilize the request object for creating absolute uris
Add Python APIs for account/profile information to user_api
Updating profile page to have social linking
Authors: Renzo Lucioni, Alasdair Swan, Stephen Sanchez, Will Daly
