[FIXED] Don't unset saveKey when loading the key fails.
This causes saveKey to fail as soon as it's synced to a device that hasn't saved the key yet.
[FIXED] A bunch of threading violation issues with thread-confined MOCs.
[MOVED] Creation of new elements moved to shared code.
[FIXED] When switching user, unset active key.
[FIXED] Synchronize content calculation to avoid race issues while typing.
[ADDED] Ability to create new sites.
[FIXED] Unset active element when hitting backspace or escape.
