More MP Changes

[Andrew J Berkley <berkley@wam.umd.edu>]

I totally removed the old Message Manager scheme.  Just about everything
uses the new message passing scheme.  There are some bugs in it though
(RemoveID doesn't work -- someone should fix it).  This is probably the
biggest change to the tree so far (I went through about a billion files
fixing things -- supported by vi's amazing key-stroke conserving
interface, or it would have taken years).

This means that there is no longer any excuse to not do any coding.

Andrew