Worked on Axis.guessOrder().
Made gradient, minimum metric change, and max symmetry order parameters.
Don't store AFPChain since it takes too much memory. Will need to do
something else for web version.
Made a no-argument Axis.guessOrder() method.
Allow buildDefault() to take an AlgorithmGiver.
Changed TM-score cutoffs back to 0.4.
Wrote generallySymmetricSmart() and generallySymmetryFromAngle().
Use code now in biojava-structure.
Wrote header comments.
Fixed a NPE.
Made work with changes to AstralScopDescriptionCensus and Astral in
biojava-structure.
Made work with PrintWriters, and wrote a nice header comment.
Changed TM-score cutoff to 0.4, and wrote nice header comments.