replace slow spec group ‘optimize image data’ with optimize_image_data spec, part of #60
replace slow spec group ‘optimize image data’ with optimize_image_data spec, part of #60

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