scripts/usrmgr-server: Renamed actions from dashes to underscores. (Consistency). accept_user returns a dict instead of None.
apps.py: Turned off auth for userservice (otherwise requests can't come thru from a user who is not activated; dispatch blocks such requests). Userservice does its own auth from now on.
userservice: Now makes the call to usrmgt-server for accept_me. Does authentication (since we can't do it at dispatch level).
tos.js: Clicking Accept now makes an Ajax call to userservice to get the account activated.
WHAT WORKS: Clicking the button now gets the account activated. There are some rough edges and errors won't be handled well. WHAT DOESN'T: After clicking, the user is left thinking that nothing happened. They have to log out and back in again to enable themselves. (This is noted in the bug tracker).