Merge branch 'master' into lilypond/translation

* master: (32 commits)
  Tidy up formatting of markup snippets.
  MusicXML: Update musicxml2ly to use the new \tempo text dur=count function
  Added regtest for parenthesized metronome marks
  Small update from Ralph, big changes by Graham.
  GDP Rework NR 3.3.2
  Fix docs compilation
  Update from Ralph.
  Fix version number of regression test
  Nits in tutorial
  bump version
  Minor updates.
  Update for expressive.itely
  New markup command snippets.
  Minor improvement
  Use noragged-right
  Fix version number in regression test case
  Fix version number for conversion rule.
  LSR: Update.
  markuplines: really fix vertical spacing of lines when using eg. \justify-lines
  Add noragged-right fragment option.
  ...