* utils/hbrun/hbrun.prg
+ Extended to look in current dir, hbrun dir and PATH for
passed script name, if no extension was passed, it will
try .hbs and .hrb in that order. This means hbrun is
pretty much like a shell command processor now.
* bin/hbxpatch.hbs
* utils/hbmk2/hbmk2.prg
* utils/hbrun/hbrun.prg
* contrib/hbqt/hbmk2_plugin_qt.hbs
* config/postinst.hbs
* HB_OSPATHSEPARATOR() -> HB_PS()
* HB_OSNEWLINE() -> HB_EOL()
* utils/hbmk2/hbmk2.prg
* Using string literals instead of Chr() in few places.
! FindInPath() corrected to honor original dir in filename
it receives. This may affect plugins if they pass such
argument.