* Fix off-by-one errors when mlock_dup'ing a string.
* Add ms_client_get_hostname() to get the gateway's designated hostname
from its certificate.
* Update the RG and syndicate.pyx to use syndicate.hostname() to get the
RG's designated hostname (which uses ms_client_get_hostname()).
* Set OPENID_DEBUG in the MS from the devel= build flag.
* Remove unused OpenID option in msconfig.py.