Rely on our own IP4 network tables instead of any sort of GeoIP stuff
Summary:
Replace dependency with implementation
Also sets the default user_setting for country to the derived country
Test Plan: None yet
Reviewers: #hkccp_developers, machniak
Reviewed By: #hkccp_developers, machniak
Subscribers: machniak, #hkccp_developers
Differential Revision: https://git.kolab.org/D1642