Combine discussion init calls and remove unused params and options
Provide an empty top comments container when the cta response fails
Load top comments, regular comments, and profile all asynchronously
Linting fixes
Relocate comment count init
Chain class modifications
Merge branch 'master' into discussion-loading-perf

Conflicts:
	common/app/assets/javascripts/modules/discussion/comments.js
Merge pull request #6236 from guardian/discussion-loading-perf

Discussion loading perf