Stubbed out commenter activity endpoint.
Merge branch 'master' into discussion-activity

Conflicts:
	discussion/app/discussion/CommentPage.scala
Fixing merge error.
Added support for JSON endpoint.
Add simple ProfileDicussions for profile page
Add simple ProfileDicussions for profile page
Simple Profile Discussions page
Add styling to profile discussions
Update dev-build routes
Fixed broken ProfileActivityControllerTest.
Update profile activity test to search for class name
Data
Added recommend count on profile activity
Excess route removal
Merge pull request #4328 from guardian/discussion-activity

Profile Discussion Acitivity