package problems.
* Include special ``here`` and ``__file__`` default vars for logging
config files, similar to PasteDeploy config loading.
* Allow Jython to import various bits from ``paste.script.command`` and
``paste.script.copydir`` without throwing an import error (subprocess
module cannot be imported on Jython). This allows PasteScript to work
minimally on Jython, although execution will fail for
``command.run_command`` and ``copydir.copydir``.