Removes warnings from .rspec file because it was making tests noisy due to warnings in gems.
Merge pull request #23 from WGBH/get-rid-of-rspec-warnings

Removes warnings from .rspec file because it was making tests noisy due ...
Only overrides update_resource method in order to better reflect devise
Merge pull request #21 from WGBH/override-registrations-controller

Overrides the default registrations controller provided by devise.
Adds the rest of our user fields to the edit profile page for users. Fixes #19