fixing reply button click boundaries
hide showhiddencomments button when changing sort order
fixing show more/newer/older/etc comments button text
comment margin/border, blockquote style, desktop avatar/meta text style
fixes to show more comments button functionality
minor formatting
Merge branch 'master' of github.com:guardian/frontend into discussion-comment-bugfixes

* 'master' of github.com:guardian/frontend: (77 commits)
  removed reference to old user zoom js
  use distinctBy to dedupe results
  add possible most-viewed to response
  clearing longer items
  remove casper tests for most popular container (not pulled in with js anymore)
  remove js most viewed; adding template mapping
  spout positioning fix
  avatar image alt attribute
  css selector readibility
  Use 'you' in edit message
  anal fixes
  Link to show concurrent edits
  remove rogue logic hack
  correct logic
  See concurrent edits
  removed old user zoom code
  links to user zoom survey
  Group Quantcast switch under commercial tags
  Fix broken switch signature
  Change css class to be content agnostic
  ...

Conflicts:
	common/app/assets/stylesheets/module/_discussion.scss
fixing comment box height style
Merge pull request #2767 from guardian/discussion-comment-bugfixes

Discussion comment bugfixes