Attempt to add support to uwsgi and gunicorn and other libraries that use pastedeploy

[mmerickel]

• Investigate Plaster integration benoitc/gunicorn#1506

• https://github.com/unbit/uwsgi/blob/38c6e62930171b7e28784cce0f88fadbd3474b06/plugins/python/pyloader.c#L677