test optimize_images_data in optimize multiple spec group
test optimize_images_data in optimize multiple spec group

ramiroaraujo/image_optim,weheartit/image_optim,ramiroaraujo/image_optim,toy/image_optim,toy/image_optim,mihailim/image_optim,ramiroaraujo/image_optim,toy/image_optim,weheartit/image_optim,mihailim/image_optim,weheartit/image_optim,mihailim/image_optim