* master:
  Fix bug where wrong commit ID was being used in a merge request diff to show old image
  Remove CHANGELOG item that was added during merge resolution
  Improve the "easy WIP & un-WIP from link" feature
  Fix specs
  \#to_branch_name now uses the iid as postfix
  Add label description in tooltip to labels in issue index and sidebar
  Easily (un)mark merge request as WIP using link
  Use specialized system notes when MR is (un)marked as WIP
  another attempt to fix oauth issue
  attempting to fix omniauth problem

Conflicts:
	app/assets/javascripts/issuable_form.js.coffee