Clean up toolbar images and add Retina assets.
Move print icons now that all icons are the same size
Faster JPX decoding
Merge pull request #4264 from fkaelberer/FasterJPXdecoding

Faster JPX decoding
Merge pull request #4315 from shorlander/master

Clean up toolbar images and add Retina assets.
Merge pull request #4327 from Snuffleupagus/issue-4315-followup

Move print icons now that all icons are the same size