Next step toward separating TwistyObject metadata.
Jings: further corrections.
implement enumeration of permutations in linear time. This hopefully speeds up all solvers.
CU_323 solver: last step.
CU_323 solver: progress and slight speedup for the 'old' solver.
CU_323 solver: new schema.
CU_323 solver: corrections.
CU_323 solver: minor.
CU_323 solver: remove mUpper.
CU_323 solver: bugfixes.
CU_323 solver: theoretically complete.
CU_323 solver: progress
Beginnings of CU_323 solver.