Re: Fix Tracker 918, Add extra RemoveEmpty*StaffContext functions to support "Frenched" scores (issue165096)

[ian]

Version numbers sorted, also formatting of music in hara-kiri-drumstaff
and hara-kiri-tabstaff.

Regression tests re-run locally.

Cheers,
Ian


http://codereview.appspot.com/165096/diff/3015/1022
File ly/engraver-init.ly (left):

http://codereview.appspot.com/165096/diff/3015/1022#oldcode144
ly/engraver-init.ly:144: \accepts "FiguredBass"
This line not removed by this patch:  appeared after git rebase.

http://codereview.appspot.com/165096/diff/3015/1022#oldcode378
ly/engraver-init.ly:378: \consists "Text_spanner_engraver"
This line also not removed by this patch.

http://codereview.appspot.com/165096/diff/1023/3021#oldcode144
ly/engraver-init.ly:144: \accepts "FiguredBass"
line removed during git merge/rebase, not explicitly by this patch.

http://codereview.appspot.com/165096/diff/1023/3021#oldcode378
ly/engraver-init.ly:378: \consists "Text_spanner_engraver"
line removed during git merge/rebase, not explicitly by this patch.

http://codereview.appspot.com/165096