Added url for user profiles
Added view for user profiles
Template for seller profile
Template for buyer profile
Merge branch 'patch-8' of https://github.com/jlin45/prepay
Merge branch 'patch-9' of https://github.com/jlin45/prepay
Merge branch 'patch-10' of https://github.com/jlin45/prepay
Merged Jen's User page stuff.