Ficl - small systems scripting with OO

File Release Notes and Changelog

Release Name: ficlwin302

Notes:
Fixed a bug in "environment?" - was ignoring the length of the supplied string.
"my=[" detects object members (using ?object) and assumes all other members leave class unchanged
Added "objectify" and "?object" for use by OO infrastructure
Ficl OO tutorial expanded and revised. Thanks to David McNab for his demo and suggestions.
Consolidated context and pExtend pointers of FICL_SYSTEM - VM's pExtend pointer
  is initialized from the copy in FICL_SYSTEM upon VM creation.
Ficlwin character handling is more robust
SEE improvements - SEE (and consequently DEBUG) have improved source listings
  with instruction offsets
Corrected various bugs in docs. 
Added ficl-ized version of JV Noble's Forth Primer
Ficlwin uses multi-system constructs (see ficlthread.c)
MEMORY-EXT environment variable removed (there is no such wordset)


Changes: