Added 6 sites

Automater (custom: Rublon), Domeny.tv (custom: Rublon), drchrono
(Authy), Frostbox (custom: Rublon), Scalr (Google), WeMineLTC (Google)

Just like you suggested, for the sites that offer Rublon 2FA, I have
added them including this information in the "custom" column.
Merge pull request #183 from mwww/master

Added 6 sites