Changes by: Aleksey Nogin (nogin at metaprl.org)
Date: 2007-04-11 17:44:18 -0700 (Wed, 11 Apr 2007)
Revision: 10405
Log message:

      - Include the .com and .cmd in the list of "executable" suffixes recognized by Omake_cache, e.g. during PATH lookup.
     - Have Omake_shell_job refer to Omake_cache's list of "executable" suffixes (for locating executables given with a path) for consistency.