Add note about how findAllWithAncestors works
Add note about how findAllWithAncestors works

Also rename its recursive core to findAllWithAncestors_ as are other
inner functions.
ravichugh/sketch-n-sketch,ravichugh/sketch-n-sketch,ravichugh/sketch-n-sketch,ravichugh/sketch-n-sketch,ravichugh/sketch-n-sketch,ravichugh/sketch-n-sketch