new cm archives - fixes and csound improvements

[Heinrich Taube]

Ive placed new archives on ccrma-ftp and ftp.zkm.de. These fix a few problems in MCL3.0p2 and include new support for Csound and CMN.

Fixes:
o Cm now builds in MCL3.0p2 without an error in low.lisp.
o Help menu now finds stella command help texts.
o Capella tutorial loads in 8 seconds rather than 35.
o Mix and Seq now pass play options along to post-processing routines.
o Pathnames item stream now works and is documented in dictionary.rtf

Csound Improvements:
o New note class CSound-Note implements automatic score file output for its subclasses. If your note object inherits from csound-note you dont have to write any output methods. See the updated stella/examples/i1.lisp for more information.
o Importing .sco files now works. Only straight scores at the moment -- no dot-pfields, no octcps statements, no nothing, just blanco absolute values. (Thank you Anders Vinjar.)  See updated Csound entry in dictionary.rtf for import options.

CMN improvements:
o Post-processing routines now use cm/site/showcmn to display .eps files. Showcmn is currently set up for NextStep.