Author: Kev <klmitch@mit.edu>

Author: Kev <klmitch@mit.edu>
Log message:

Some efficiency enhancements in m_motd.c; a new way to set the PRNG's seed
and some randomness enhancements (feedback); featurization of many compile-
time options; a new feature flag to inhibit all display of something, like,
say, the random seed.

Testing:

Compiles, no warnings; runs without apparent problems.  Please brute-force
it to see if any of the features can be broken.

git-svn-id: file:///home/klmitch/undernet-ircu/undernet-ircu-svn/ircu2/trunk@353 c9e4aea6-c8fd-4c43-8297-357d70d61c8c