+ Back and Forward tooltips show the destination.
! Selection stats were incorrect at times. Attempted fix.
! Last item couldn't be dragged. Fixed.
! New tabs didn't activate pane change unless restarted. Fixed.
! Navigating back to root would display root twice. Fixed.
!! Breadcrumbs memory leak. Fixed.
+ Added Toolbar icon to go up
+ Toolbar buttons are disabled if can't go back/forward/up