assistant release manger

[Graham Percival]

Given how things are going, it's past time that we have somebody
else that can make releases.  Who's interested in learning?

Requirements:
- powerful computer
- can already compile GUB from scratch
- is well known to lilypond developers (say, at least 1 year of
  lilypond development)
- familiar with ssh, unix shell scripts, and python scripts

If you are a candidate but feel that you are too busy working on
other lilypond stuff, then find&train a replacement for that stuff
over the next few weeks so you can do releases.

- Graham