[tlbuild] starting builds

[Karl Berry]

Well, there may be a couple more pdftex tweaks coming, but let's give
the TL 2011 builds a first attempt.  Please don't commit any binaries
yet (and no need to send me anything) -- we can't do that until we
freeze net updates.  But let's find out if there are any compilation
problems and go from there.

A new asymptote will definitely be coming, so don't worry about that yet.

I hope/believe all the other programs are set at this point.

Thanks,
Karl