Just for a change I did not announce when I put v3.56 on the server to
see if anyone would notice.  Surely I must have left bugs in it,
missed files or something; I usually do.

A number of bug fixes (like pset now works, follow fixed), the @ and
@@ operators in scores, and new opcodes -- clockon clockoff readclock
resony fold vincr clear fout foutk fouti foutir fiopen fin fink fini 

Added access to SADIR SSDIR and SFDIR in Windows GUI.

Known bug in the clock opcodes (now fixed).
Still a number of outstanding things to do for next time.

==John ff