Retrieve network adapter IP addresses, and show them on easyadmin page.
Merge branch 'release-0.11.1' of github.com:learningequality/ka-lite into determine_ip_addresses

Conflicts:
	kalite/main/views.py
Use get_ip_addresses() in setup command, to show full list of IPs.
Merge branch 'release-0.11.1' of github.com:learningequality/ka-lite into determine_ip_addresses

Conflicts:
	kalite/main/views.py
use actual port, fall-back to expected port.  Link links for testing purposes.