FIX: handle importing usernames that are too short, too long, or have invalid characters
Avoid using to_s when performing String Interpolation
FIX: Metamorph error due to malformed HTML
FIX: confusing UI when clicking Delete All Posts button
FIX: PostDestroyer needs to update user stats. Delete All Posts button was broken, making it impossible to delete users.
UX: Squash activity columns together. Show a cold map on the difference
between the last post and original post dates. Fix some missing classes
in the mobile templates and topic map.
Merge pull request #2656 from akshaymohite/optimization-fixes

Avoid using to_s when performing String Interpolation
Merge pull request #2655 from techAPJ/patch-3

FEATURE: export user list
FIX: add referer to version_check request
we don't need this "or" separator on login page
friendlier email rejection message
FIX: Bug with cached topics not being marked as read in your topics
list.
try grey instead of blue for coldmap range
Update oj to latest
FIX: Issues signing in without local logins
FIX: dispatch correct modal on auto login
BUG: staff should not be allowed to edit emails when email_editable is false
fix spec, I don't agree with allowing mods and staff to edit this
FEATURE: logout redirect support

Allow users to also logout on an external site after logging out locally
more betterer heat/coldmap color scheme