extract mirror functions to separate file
fix distribution_type default value
mirror_package now by default mirrors the files as they are on pypi, instead of building the package
hard_install script should use get_dependencies from dependencies.py
fix arguments when using --recursive (not all arguments were passed as in the oringinal call)
add compare_pypi_repos script

argument is a url to a DjangoPyPI repository. The script prints a list of packages that have older or newer versions in the global pypi.
move mirror_package script to a separate file