maintaining advanced power-user Scheme functions

[Janek Warchoł]

Hi,

Harm and David N. (and some other people) write lots of very advanced
(and very helpful!) Scheme functions.  These funcitons are improved
over time, and there is a problem related to that: it's easy to get
lost in all the email threads about them, and it's not always obvious
where the most recent version is.

I think that such functions should be tracked by version control, and
i see two approaches:
- include them in official LilyPond source as soon as they are
created.  Upside: there's bigger chance that they will be updated when
there are some changes. Downside: one has to write documentation and
go through official patch submitting channels.
- use another repository.  What about OpenLilyLib? http://www.openlilylib.org/

At any rate, we better do something about it - at current state, all
these funcitons can easily become lost or forgotten, and that would be
a grave loss.

Thoughts?

Janek