- The build fails with GTK2 and KERBEROS5 options on, so fix them.
- Turn the MB option on by default. It was never disable before the switch
to option helpers and fonts looks bad without it.
*Note*, even when supplying --disable-setuid to configure, xlock and
play.sh are installed with setuid bits on. This seems to be required/intentional based on pkg-plist and run-time tests.