Auto-anchor attribute regexes, document _validTags
FIX: Use lang- prefixes for HLJS; add nohighlight for ...

text; use a proper whiteListTag() call.

Old posts are not affected - no global rebake is necessary.
Clean up validateAttribute() function

Remove code duplication
FEATURE: Allow explicit rel="nofollow" on links
Fix JSHint
Fix data-* behavior (failure to understand own docs)
Update Markdown tests
FIX: regression latest.rss was broken
FEATURE: show raw email for replies/topics created via email
only staff can view raw email
further optimize raw email feature
FIX: Many bugs with admin badges interface

* Editing a badge's title would show it as changed in the side even if
  you didn't hit save

* Clicking a badge would not scroll to the top

* If there was an error saving a badge there was a missing i18n key

* URLs were using queryParams instead of paths

* User `label` tags for checkboxes for larger click targets

* Saved! text would persist when viewing another badge

* After creating a new badge it would show nothing

* Validation errors were not being properly released to the client

* Query errors were surrounded by an extra array
remove broken symlink
move user-dropdown unread PM badge to right
Remove database steps in DEVELOPER-ADVANCED.md
FEATURE: advanced search help
copy
FEATURE: added status:noreplies and status:archived to advanced search
FEATURE: in:likes and in:posted search filters
FEATURE: in:tracking and in:watching search filters