2 - Generic properties and Property_engraver. Moved most of the
10 - reverted mup2ly revert
13 - frontport of 1.2.17 patches.
23 - another workaround: reset buffer state for scm_ftell ()
24 - workaround for broken scm_ftell ()
27 - \properties are now SCM s, junk Scalar type
28 - use SCM for strings in parser.
29 - Moment derived from Rational. Moment may be smobified.
32 - direct #... to scm parser (Thanks to Gary Houston)