added support for relative protocol urls
added support for relative protocol urls

jazzband/sorl-thumbnail,jannon/sorl-thumbnail,jazzband/sorl-thumbnail,jannon/sorl-thumbnail,gregplaysguitar/sorl-thumbnail,jazzband/sorl-thumbnail,mariocesar/sorl-thumbnail,jannon/sorl-thumbnail,gregplaysguitar/sorl-thumbnail,JordanReiter/sorl-thumbnail,gregplaysguitar/sorl-thumbnail,JordanReiter/sorl-thumbnail,mariocesar/sorl-thumbnail,mariocesar/sorl-thumbnail,JordanReiter/sorl-thumbnail