- Enable it for nightly build users
- 1% of lookups are checked for correctness, leaving a crashlog on failure
- Clear the DWC cache when dropping a line. I beleive this was the cause of the assertions in beta 6 and 7.
- Make the check for nightly build faster

Fix leak of password manager sheet window. Also add advanced pref to disable its animation. Issue 5794

Make CPKColorWell and CPKPopover tolerate the color well being removed from the view hierarchy while the popover is open. This is necessary to show a color well in a table view.