- minor cleanup

Put in here for binary packagers to rely upon (it's eventually going to be deleted from the inst directory).

Recursively make subdirectories as specified by dirname.

(This is to support interactive instance creation).

Don't put zconfig script into bindir.

Add a --no-compile option to prevent bytecode compilation (for binary packagers who don't want to ship compiled bytecode).

associated database version pool.

       instead of clearing them.

Collector 952 (--with-python that has no trailing arg causes it to be passed to Python configurator, which raises an inscrutable error).