Review Board 1.7.22

Update container config values, comments. Make things easier to configure for locked domains.

Review Request #2950 - Created Nov. 28, 2011 and submitted

Dan Dumont
rbaxter, ssievers
I've attempted to make it a little easier for people to enable locked domains by clarifying some comments and marking critical configuration sections.

Please, if I've misinterpreted or misrepresented a config setting, let me know.

Will attach a JIRA if necessary.  I did want some comments before submitting something like this though.
All tests pass.
Review request changed
Updated (Nov. 29, 2011, 3:11 p.m.)
Committed r1207899