Change "All" option in Roles to be JavaScript controlled

In roles it would be helpful if the "All" option was converted into a JavaScript function that did nothing more than toggle the checkboxes below it on or off. For a user to disable just one resource in a role, they have to first uncheck "All" and then check read and write for every other resource except for the one that they want disabled. If "All" was JavaScript based it would check/uncheck all boxes (and should check itself if a user checks off all the boxes themselves). Using this method could also reduce confusion encountered when one asks what should happen if they check off "All" and also check off other boxes.