Cleanup gitignore with CMake out-of-source builds simplifying things
Cleanup gitignore with CMake out-of-source builds simplifying things


Former-commit-id: 9c7f01a0d6e7a1f875c207613a4263149d0cc9dc [formerly 547756d4695196d088208b0bedcee61b14dc458d]
Former-commit-id: 3fe4cdb9022bad39759f06af6c8606ee4592bf75
dpwolfe/otucha,dpwolfe/otucha,dpwolfe/otucha