implement argparse and support overriding the skeleton with a filesystem dir or tarball
remove wsgiref as it's a secondary requirement
fix comma style; support zipfiles as well as tarballs
add support for urls that point to supported file types
fix original case, which I broke
Merge pull request #44 from JoeGermuska/argparse

implement argparse and support overriding the skeleton with a filesystem...
Ran test and cleanup
Small doc change