Pick link appended to comments, link calls highlights api when clicked.
Pick buttons now work, add label or display error message and do not appear on your own comments
Merge branch 'master' of https://github.com/guardian/frontend into nextgen-pick-button

Conflicts:
	common/app/assets/javascripts/modules/discussion/comments.js
Tidy up
Remove script template
Fixed but with displaying of pick button (incorrect boolean cast)
Merge branch 'master' of https://github.com/guardian/frontend into nextgen-pick-button
remove comment
Comments can now be un-picked
Merge branch 'master' of https://github.com/guardian/frontend into nextgen-pick-button
Comments
Pipe separators
Merge branch 'master' of https://github.com/guardian/frontend into nextgen-pick-button

Conflicts:
	common/app/assets/javascripts/modules/discussion/comments.js
Merge branch 'master' of https://github.com/guardian/frontend into nextgen-pick-button
Change variable name
Merge branch 'master' of https://github.com/guardian/frontend into nextgen-pick-button
Renamed class, added class to seperator
Merge branch 'master' of https://github.com/guardian/frontend into nextgen-pick-button
Changed hidden span to title attribute for screen readers
Adjust comments