the latest convert-ly fiasco

[Graham Percival]

I've lost track of where we are with convert-ly.

I have just ran update-with-convert-ly.  I saw a flag change from
2.15.10.  I have pushed that.

I know that there are other syntax changes that people want to
make.  Somebody make a patch with all those changes, for version
2.15.16.  Once that patch is pushed, I'll release 2.15.16, so that
we can start with a clean slate from 2.15.17 onwards.


I am not going to try to make any general guidelines for
convert-ly at the present time.  When I am feeling better, we will
resume GOP, and we'll get a definite set of instructions for
syntax changes.  Until then, just do whatever works, and if it's
useful to have a couple of extra releases just to avoid combining
multiple syntax changes in the same version number, so be it.

- Graham