This commit removes the import of jandd.sphinxext.ip in setup.py to
allow bootstrapping without installed requirements. A setup.cfg defining
options for egg_info has been added.
This commit implements auto generation of IP address lists for IP
ranges. The ipcalc PyPI module is used to determine which IP addresses
belong to a given IP range. The IPs are listed in IP range sections and
links to the original pages are added.