remove duplicate content tools
remove duplicate eager_load
fix error message
remove puts
properly return json in media controller if no iframe transport is used
remove old workaround for IE - and get dragging back working

the removed code prevented proper working dragging relying javascipt, e.g. jquery-ui draggable, when a rangeinput was on the page
make suffler class part of session key to prevent crash when switching shufflers that have different cache data format
Merge pull request #1162 from simplysoft/housekeeping

I have no problem with that