* contrib/hbgs/tests/testgs.prg
* contrib/hbgs/hbgs.hbx
* contrib/hbgs/core.c
* contrib/hbgs/hbgs.hbp
* contrib/hbgs/hbgs.hbc
+ Added HB_GSAPI_REVISION() wrapper + test code.
- Disabled for dos and wce.
+ Added autodetection on *nix systems.
+ Added darwin support.
+ Added os2 dll name.
; TOFIX: Test (which is more or less the same as the official
example code) doesn't work on darwin, it pops X11 and
gives a gs cmd prompt.