Reference tagging status view

[rabstejnek]

Fleshed out the view for tag status (previously referred to as tag history). This view shows consensus tags and all user tags applied to a reference, including those which were resolved. Parts of the conflict resolution template was repurposed to also serve this purpose, so there are also slight style changes on the conflict resolution page.

Conflict resolution view (slight changes)

Tag state view

Other changes:

• Generalized some CSS class styles for the conflict resolution page to keep stylesheet bloat down
• Updated reversion for Reference and ReferenceUserTag to follow tag changes
  • These tags are added as Version models associated with the Reference/ReferenceUserTag Revision; I believe this is the solution that reversion expects since this actually allows you to revert to the previous tagging state, but if we wanted a more lightweight approach maybe an Assessment.Log would be more appropriate (future PR)

[rabstejnek]

@shapiromatron I updated the wording from "tag history" to "tag state", since I believe that is more indicative of what's being shown; I'm open to other suggestions of wording, since it would just be an easy search and replace.

[shapiromatron]

Nice job! Some minor tweaks requested to the language for state vs history; we can discuss in person if you'd like.

[shapiromatron]

Looks good! I made two minor, substantive changes: a) renamed "tag state" to "tag status", and b) for the tag status page, we should all user_tags, regardless of if they've been resolved or not. It's just available for the historical record.