crashing when self.force not defined.
Revise 'copy_file()' and 'copy_tree()' docstrings accordingly.
Remove 'hasattr()' check for 'self.force' from 'make_file()'.
to all commands in the same way. Several Command methods now either expect
'self.force' to be defined, or check if it is defined and assume it's
false if not.
the Command class from core.py to cmd.py. No other code needs changing
though; distutils.core still provides the Command and Distribution classes,
although indirectly now.
Greg Ward