patch::: 1.3.34.jcn3

patch::: 1.3.34.jcn3

1.3.34.jcn3
===========

* Small enhancements to Staff_margin_engraver:
   - by default, the marginScript left aligns the text
   - to set the text style, use property marginScriptTextStyle
   - to change the alignment, use property marginScriptHorizontalAlignment
     (centred and right alignment require manual padding settings).