[tlbuild] rebuild yet again

[Ken Brown]

On 5/11/2015 4:59 PM, Karl Berry wrote:
> As for Asymptote, as discussed, Dr. Bowman just released a new version.
> I don't know if we will be able to include it -- I'll try to compile it
> myself later today or tomorrow.  We shouldn't commit any new asy
> binaries unless/until we achieve some kind of critical mass of success.

asymptote-2.33 builds on Cygwin (both i386 and x86_64) and passes the testsuite.

Ken