Upgrade less to 1.3.3 and monkey-patch it to overcome LESS pre-compilation issues in Leap of Fangs
Add error handling for categories \ currencies that already exist
Add error handling for renaming categories \ currencies to names that already exist
Merge branch 'leapOfFangs' into dev
Move image placeholder data URI into storefront, upgrade imagesLoaded for this to work
Instead of empty images, default new entities added with placeholder data URLs
Merge branch 'imagesLoaded' into dev
Merge branch 'dev'