adding the url_helpers test for upscale()
adding the url_helpers test for upscale()

voxmedia/thumbor,kkopachev/thumbor,thumbor/thumbor,kkopachev/thumbor,scorphus/thumbor,marcelometal/thumbor,gi11es/thumbor,kkopachev/thumbor,gi11es/thumbor,scorphus/thumbor,gi11es/thumbor,marcelometal/thumbor,voxmedia/thumbor,kkopachev/thumbor,scorphus/thumbor,okor/thumbor,thumbor/thumbor,okor/thumbor,scorphus/thumbor,okor/thumbor,thumbor/thumbor,thumbor/thumbor,voxmedia/thumbor,marcelometal/thumbor