some fixes/tuneups. accounting for background.html
cleanup board model callbacks
personas template apostrophe typo. my english teacher aint gonna have none of that
moving invites css to app
making persona editor a bit more lenient about not passing in a collection
as far as i can tell, invites are now working! you can accept, deny, and unlock. accepting a board invite grabs the board data, and adds it to the profile. when done via the background panel, the board shows up great in the app tab (with all the notes/data). works beautfully. denying invites seems to work great as well.