CVS hackery

[Stephen Weeks]

> What did you do that screwed things up, and what did you do to fix it?

I was attempting to create a branch off of the trunk so Matthew could join me in
working on the SSA stuff.  I mistakenly committed the changes on the trunk
instead of on the branch.  Fortunately, I had tagged both the version before and
after the commit, so to fix the problem, I reverted the changes, created a new
branch, committed the changes on the branch, then fixed up all the tags.  I
think it's now ok.