* Added macro \turnOff to remove volta brackets or any other
graphical objects, see input/test/volta.ly or mutopia/J.S.Bach/pa.ly
* Removed the "none" clef, use Clef \override #'transparent = ##t instead.
* Bugfix ly2dvi: paper variable orientation = "landscape" works.
* Allow for wildcards in the font style alist to give more robust font
selection handling. Ignore shape and series for the font families:
braces, dynamic and music.