Merge pull request #14 from monicachew/master

Fix issue #9
whitelist by host base domains, not URLs
use {} instead of Map
Merge branch 'master' of ssh://github.com/mozilla/blushproof
Merge pull request #16 from monicachew/master

Fix issue #8
Merge branch 'master' of ssh://github.com/mozilla/blushproof
Merge pull request #20 from mozkeeler/master

Fix #12, whitelist by host base domains, not URLs
Fix #21 - refactor getting base domain from host
Merge pull request #23 from mozkeeler/master

fix #21