Added a registration test page.
Finished de-register page.  Right now it only unchecks the user's can_email field, doesn't actually delete them.
Tweak
Merge branch 'master' into tweaks
Added some joins to reduce the number of queries..  I should also do this to the invite list page.
Now call constructor on mail object after unserializing it.  This way the log (and other resources it might set up) can work.
merged