Hide child upgrades that are not part of the current upgrade chain
Hide child upgrades that are not part of the current upgrade chain

Hides version nodes that have action.description == 'Upgrade', when
hideUpgrades is set.

This reduces dangling node clutter when we have broken upgrades.

minesense/VisTrails,minesense/VisTrails,minesense/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,minesense/VisTrails,minesense/VisTrails