Revert "Switched to YES and NO for consistency?"
Revert "Switched to YES and NO for consistency?"

This reverts commit 5d0e9f226f67d47c30d12ed9e82871834fd062b2.

grahammendick/navigation,grahammendick/navigation,grahammendick/navigation,grahammendick/navigation,grahammendick/navigation,grahammendick/navigation,grahammendick/navigation