Merge branch 'master' of ssh://jomand@git.sv.gnu.org/srv/git/lilypond into lilypond...

* 'master' of ssh://jomand@git.sv.gnu.org/srv/git/lilypond: (37 commits)
  Fix broken example
  Update from Francisco.
  Update from Jonathan.
  Update for expressive.itely
  Headword tweaks.
  LSR: Update.
  Bump VERSION.
  Fix 418.
  GDP NR 3.5 MIDI rearrangement
  Add X-extent override for \arpeggioParenthesis.
  Improve chord modifier snippet layout.
  Update from Ralph
  Update from Francisco.
  Minor update.
  Documentation nitpicks
  Headword for fretted strings.
  Update from Jonathan
  GDP LM 4.6.1 Change heading
  GDP NR 3.5 MIDI support
  \markuplines: fix space between \justified-lines groups
  ...