Remove 'registered' setting - it's not useful.
Code to force registration
Updating JsonP, exposing central server "auto" registration.
add choices and info on registration, implement distributed server side of auto-registration

Conflicts:
	kalite/templates/securesync/register_public_key_client.html
Move interaction to javascript, avoid unnecessary cron error.
Code cleanup, documentation, and tweaks due to code review.
More inline css, sweet :( Anyway, registration page a little cleaner.
Split page into two rows
Wrapped in trans tags
Swapped 1-click to be on the left
Tweaking indenting
Merge pull request #1567 from bcipolli/force-registration

Force registration