MDL-40393 mod_scorm: render SCORM player Nav bar with YUI3
MDL-40393 mod_scorm: remove close buttton from nav panel
MDL-40393 mod_scorm: make nav panel draggable, YUI3
MDL-40393 mod_scorm: update nav panel align() call, YUI3
MDL-40393 mod_scorm: render nav buttons with YUI3