[tlu] beta with support for TL 2016

[Adam R. Maxwell]

> On Apr 19, 2016, at 20:10 , Richard Koch <koch at uoregon.edu> wrote:
> 
> Adam,
> 
> Thanks. The repositories are being hammered tonight, so I’ll wait until tomorrow
> to test. I appreciate the speed with which you updated.

Yeah, well, let's see if it works :).

The Utah mirror looks to be back up again, and it has
a newer update-tlmgr-latest.sh than the hmc.edu mirror.
Maybe that will do the trick.

Next up, adding a gpg path UI that doesn't suck…

-- adam