Merge pull request #2939 from awesomerobot/master

adding last post/joined to usercard
FIX: mobile date was pushed offscreen, w/ h-scroll
mobile user profile page tweak
mobile user profile page tweak
FIX: restrict the size of small tags (when nested)
Add archive.org to crawler list to serve no-js to
Merge pull request #2941 from riking/archive_org

Add archive.org to crawler list to serve no-js to
FIX: add 'show emails' button from moderators in user admin section
FIX: don't create a new revision when there was an error while saving the post and/or topic
fixing ban display on usercard and IE11 issue with user page controls