Use jQuery; Prototype is no more in RT 4
Update M::I
Report entire HTTP status, not just the response code

The status contains both the HTTP error code and a useful message.
Ensure passwords with non-ASCII characters are correctly handled

RT automatically decodes incoming data, but we need to pass the octets
to LWP not a character string.
Requires RT 4
Note that the mobile UI will only work for PAUSE authors

Relies on 4.0.10-mobile-login-callbacks.patch which is from an RT
branch.
Merge branch 'rt4'