[CM] Snd 7.9

[Bill Schottstaedt]

Snd 7.9

bugfixes/improvements thanks to Kjetil Matheussen, including one
   in the granulate generator that affected the "jitter" argument.
   also eval-c.scm.

added:  tools/snd.supp -- Valgrind suppressions file for Snd
           (valgrind turned up a bunch of tricky little bugs)

	quick.html

         mark-tag-width|height

         after-save-as-hook, replacing emacs-style-save-as (see snd7.scm)

         more virtual ops (and removed the "xen-channel" fallback option --
           this affects the next-to-last optional arg to ptree-channel)

xg (gtk) type checking is much fussier now.

CMN: woodblock glyph and bugfixes from Anders Vinjar.

checked: Guile 1.6.6, gtk 2.5.6 and 2.6.0, sbcl 0.8.17 and 0.8.18

with much help from: Eric Sandall, Julian Stecklina,  Kjetil S. Matheussen,
   Bruce Beach, Roman Kosellek, Tim Blechmann, Gary Scavone, Michael Uplawski,
   Anders Vinjar, Russell Aspinwall.