Only consider TM-score with order in GradientSampler.
Introduced a very backward-incompatible change: separated
symm.census2.benchmark into 4 packages: symm.benchmark,
symm.benchmark.set (pertaining to the benchmark set itself),
symm.benchmark.comparison (comparison between results and benchmark
set), and symm.benchmark.external (algorithms other than CE-Symm).
Wrote header comments.
Created ResultsExtractor.
Skip when KnownInfo is not present, but warn.
Don't set PDB dir, and use ScopFactory.setScop(String).
Use ScopFactory.setScop(String), and make sure to use 1.75A.
Created GroupExpectations.
Wrote Criteria for using Axis.guessOrder().
Use new Criterion.hasOrderLiberal().