Merge pull request #1666 from awesomerobot/master

adjusting badges a bit
FIX: Pinned topics within a category weren't working without a refresh
allow for arbitrary HTML at the top/bottom of every pages
Rename TopicSummary -> TopicMap
Convert some TopicMap stuff to Ember components
Converted Private Message map to a component
Moved more into components, including summary stuff.
Removed extra comma
Rename "Best Of" to "Summary"
If the topic can be summarized, expand the topic map by default
Site settings page tweak
Add a warning on dashboard if enforce_global_nicknames is checked, but access key is blank.
Don't shorten links in Topic Map
Added Participants, Likes to Topic Map
fix edit reason when editing a reply
FIX: Broken links on categories page
Change "Cancel Summary" -> "Show All Posts"
FIX: Topic map expansion broken without links.
no need "booting rails 4" message, just add booting rails 3 for now
defer rendering of the site map
add new and unread links in the site map categories section