Fixes issue #547 'As developer, all icon sizes should be standardized'. This commit solves icons for retina and cleans up some css and images. The solution only sprites the icons that is actually data-icons
Fixes issue #547 'As developer, all icon sizes should be standardized'. Added some files
merge commit
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'tbx/master' into stable