Merge pull request #988 from stevewithington/humbucker

bug fix: incorrect path to fontawesome on editableObjects.min.css
Associated image refinements
Merge branch 'humbucker' of github.com:blueriver/MuraCMS into humbucker
Fixing thread safety issue relating to cached setter lookups
Merge branch 'humbucker' of github.com:blueriver/MuraCMS into humbucker