Revert "Revert "Move localhost refrences to duckduckgo.com in preparation for launch.""

This reverts commit 16d683bbf69a92ff936c3bec1b16ab77dc8098ae.
Merge pull request #788 from duckduckgo/jag/127

DO NOT MERGE ::: Move localhost refrences to duckduckgo.com in preparation for launch.