Upgrade imagemin plugin
Upgrade imagemin plugin

iamchathu/grunt-email-workflow,kuzin/EmailGen,jasonmelgoza/grunt-email-design,leemunroe/grunt-email-workflow,19peaches/grunt-email-workflow,johndavidsparrow/grunt-email-workflow,johndavidsparrow/grunt-email-workflow,Mizpah/NSTransEmails,Mizpah/NSTransEmails,iamchathu/grunt-email-workflow,taeo/grunt-email-design,19peaches/grunt-email-workflow,kuzin/EmailGen,jasonmelgoza/grunt-email-design,leemunroe/grunt-email-workflow,taeo/grunt-email-design