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
Add emoji pl_PL localization
Remove href attribute from tab link to prevent duplicate event on enter.

Because Discourse doesn't preventDefault on links with an href of "#"
this tab-able link was firing a click event when enter was pressed. This
had the unfortunate side effect of breaking the history, making routing
and navigation unreliable.
Add additional fields that indicate reply

When scanning for where a reply starts, three lines in a row matching common email reply headers indicate the start of a reply. Add 'Cc', 'Bcc', and 'Date' because these are also common.
Add ?include_raw parameter to topic views
shorten user filter removal copy
remove custom groups, they are not needed
FEATURE: display github profile links on user card and profile

Can be disabled by unchecking "public_github_screen_name"
Merge pull request #2938 from riking/include_raw

Add ?include_raw parameter to topic views
quick fix on collapsed user profile controls
Merge pull request #2944 from awesomerobot/master

quick fix on collapsed user profile controls
Allow Emoji to be overwritten. Show added Emoji in search.
UX: Remove icons, add black/white colors to attributes in user card
UX: Add title to user card image, shrink to avoid bleeding into text.