Exclude safebrowsing URL from rewriting.
Implement a downgrade & duplicate whitelist.

Ultimately, we hope to remove these lists (or significantly reduce them).
Merge pull request #481 from semenko/restrict-downgrade-and-dup

Implement downgrade & duplicate whitelists
Merge pull request #478 from jsha/safer-browsing

Exclude safebrowsing URL from rewriting.
Websupport - web hosting company
Zlavadna.sk
Seznam.cz
Mall_sk_cz_hu_pl
Netretail Holding Group
Cadastral Portal of Slovakia
Telefonica - o2.sk
Dosomething.org
opendemocracy.net
Obedovat.sk
Merge pull request #483 from MilanKral/Zlavadna.sk

Zlavadna.sk
Merge pull request #487 from MilanKral/katasterportal.sk

Cadastral Portal of Slovakia
Merge pull request #488 from MilanKral/Obedovat.sk

Obedovat.sk
Merge pull request #489 from MilanKral/opendemocracy.net

opendemocracy.net
Merge pull request #490 from MilanKral/dosomething.org

Dosomething.org
Merge pull request #484 from MilanKral/seznam.cz

Seznam.cz
Merge pull request #485 from MilanKral/Mall

Mall_sk_cz_hu_pl