LilyPond 2.11.58 -- beta release

[John Mandereau]

LilyPond 2.11.58 is out.  This is a beta release, which means the next
stable release is expected in a few weeks.

This release is also special, as it includes code which supports more
flexible automatic accidentals rules, written several months ago by Rune
Zedeler, deceased since then.  All the development team express their
condolences to his family and his friends.

Besides this, automatic beaming has been improved by Carl Sorensen, and
support for creating stem flags in a new style has been contributed by
Reinhold Kainhofer, and a few bugs have been fixed.

-- 
John Mandereau <address@hidden>