Log Message:
Updated abcm2ps to 8.12.9.

---- Version 8.12.9 - 2016-11-02 ----

Fix bad PS output when justified text since 8.12.5
	(reported by Guido Gonzato)

---- Version 8.12.8 - 2016-11-01 ----

Fix again bad PS output when centered text with non-ASCII characters
		since 8.12.5
	(reported by David Lacroix)

---- Version 8.12.7 - 2016-10-31 ----

Fix bad PS output when grace notes since 8.12.6
	(from by David Lacroix)
Fix random error on Q:"text"
	(reported by David Lacroix)

---- Version 8.12.6 - 2016-10-31 ----

Fix bad PS output when centered texts with non-ASCII characters
		since 8.12.5
Adjust the grace notes offsets and helper lines
	(from David Lacroix)
Bad parse of Q: since 8.12.5
	(reported by David Lacroix)

---- Version 8.12.5 - 2016-10-30 ----

Bigger grace notes
	(asked by David Lacroix)
Loss of '%%clef none' at start of lines when %%clef inside tune
	(reported by Guido Gonzato)
Bad display of measure repeat when 2 voices on the staff
	(reported by Chuck Boody)
Bad display of repeat measure bars when multi-voices and
		symbol between ':|' and '|:' in one voice
	(reported by Heinz Färber)
Add more checks on the Q: syntax
	(reported by Manavasu)
Fix some bad PS outputs when %%tuplet with 'which' = 'no value'
	(reported by Hudson Lacerda)
Add PS functions and permit special treatments on the chord symbols,
		annotations and lyrics
	(asked by Frédéric Aupépin)
DESTDIR support in Makefile for some distributions
	(patch adapted from Thomas Klausner)
Bad string width computation on SVG output
	(reported by Martin Tarenskeen)