remove all references to XFORMS_POST_URL
move auth_context into initial form creation

keeps us from having to save twice
actually emit the username
move form processing in from receiver

and make it happen before first save

removes a GET and a PUT
emit null if username doesn't exist
Merge pull request #86 from dimagi/unknown-users

emit useful fields in the by_user view
Merge branch 'streamline' into autostaging