GOP-PROP 10: scheme indentation

[Graham Percival]

There's been no action on this for a few weeks.  I'm starting to
wonder if we should abandon this proposal and try bringing it back
in a few months.

http://lilypond.org/~graham/gop/gop_10.html

** Proposal summary

Speaking academically, scheme code style is a “solved problem”.
Let’s pick one of the existing solutions, and let a computer deal
with this. Humans should not waste their time, energy, and
creativity manually adding tabs or spaces to source code.

The script will be scripts/auxiliar/fix-scheme.sh

** Rationale

New contributors sometimes struggle to follow our indentation and
code style – this is especially difficult when parts of our
existing source code doesn’t have a consistent style. This is
problematic... we want new contributors to be struggling with the
lilypond architecture, not playing games in their text editors!
Proposal details

Use:

http://codereview.appspot.com/4896043/

I will auto-indent all ‘.scm’ files in the git tree on 2011 Oct
01.

** Implementation notes

The C++ change went quite well, and we have far fewer outstanding
patches for scheme code. No problems anticipated.

We will not manually specify what the scheme files should look
like as part of this proposal; just run that script on your files.
Interested parties may add an unofficial description of the scheme
indentation to the CG if they are interested. 


Cheers,
- Graham