dump lots of stuff. needs heavy sorting&cleanup.
FIXME add conv-ly for easy converting multiple ly files

this is supposed to help use appropriate convert-ly
(taken from approproate lily build marked as default one)
on multiple files. Supposedly it should take advantage
of my lily builds hierarchy.
I have no idea whether this works correctly with current
directory structure and environment variables.
add script for compiling fried songs.

despite the modification date being 2013-02-07,
this version is somewhat from october 2012.
I suppose it works, but i don't know whether
the results are desired.
add old version of script used for making lily

this is a legacy version, probably similar to the one
i was using in virtual machine in 2011.
It was designed to compile lilypond inside /build
subdir of main git repository.
add old script for compiling test files

this script was used together with 'make', to compile
test files with old and new lilypond for easy comparison.
It wasn't revised for a long time, and quite probably
it's now obsolete.
add a script for examining commits on branches
simple old script that i was using to analyze skylines
there are some TODOs in this file
add dvi-preview script, old version

useful for generating previews of metafont files.
dvi-preview - add TODO (git stash)
regtests: add old (?) version of the script

i have two versions of this script.  Hopefully this is the older one;
the new one will be recorded as a modification to this one.
If i remember correctly, this is very similar to the version
that i was using in Virtual machine.
regtests: apparently this is the newer version, but i have no idea what's happening
add pull-all

apparently this is the older version of the script,
but i'm not totally sure. it appears to be fairly recent anyway.
pull-all: make sure there's no color parsed

at some moment i've added a general git setting
that forces git to display colors always (this
was mostly so that output from various git commands
- like diff - will be still colored when piped).
However, when getting branch names from git,
we don't want to parse colors, so i turn them off.
pull-all: get rid of 'mirror-repo' stuff

at some point of time i employed a concept of 'mirror repo',
which was intended to be derived from main lilypond repo.
However, this comcept was abandoned, so i delete this piece of code.
pull-all: handle branches better

make sure that we end up on the same branch as we started.
pull-all: add some comments
pull-all: cosmetics, style and colorize.
pull-all: rebase on master if upstream not configured

'git rebase' by default tries to rebase against tracked
upstream branch, i.e. a remote branch specified in git config
as the "parent" of current branch. If that branch is not
defined in config, rebase aborts. Until now this caused the
whole script to abort as well.

However, since usually the tracked branch should be
origin/master anyway, pull-all now attempts to rebase against
origin/master if there's no information about tracked branch in
config, and aborts only when this attepmt fails as well.
pull-all: reverse behaviour of deleting merged branches

delete merged branches when there IS any argument given
to the script - the opposite of how it worked until now.