* python/lilylib.py (make_ps_images): bugfixes.

* python/lilylib.py (make_ps_images): bugfixes.

* input/regression/volta-multi-staff.ly: new file.

* Documentation/user/macros.itexi: refcommands, refcommand macros.

* Documentation/user/tutorial.itely (Piano staffs): new section.
(Setting variables): new section
(Fine tuning layout): new section

* input/just-friends.ly (Subject): remove file. Superseeded by
input/test/chords-without-melody.ly

* ly/property-init.ly: add all commands to refman.

* scm/define-translator-properties.scm: remove
graceAccidentalSpace, graceAlignPosition, keyOctaviation

* mf/parmesan-custodes.mf (dir_down): remove underscore from glyph
name. Underscores botch up PS output.

* scm/define-translator-properties.scm: remove
textNonEmpty
(beatLength): change from oneBeat.
(repeatCommands): remove regularSpacingDelta

* lily/timing-engraver.cc (start_translation_timestep): change
barNonAuto to automaticBars