The event type 'hover' (https://jquery.com/upgrade-guide/1.9/#quot-hover-quot-pseudo-event) is no longer supported in string form in jQuery 1.9+.
This appears once in ext.moodBar.dashboard.js (delegate should also be dropped while this part of the code is being touched) and another time in flow-component.js.
The replacement is 'mouseenter mouseleave'.