CeSymm changes [Potential Conflict]

Adds the iSSignificant() method.

Incorporates some CeSymm changes from dmyersturnbull/biojava/master (2c2dca52).
These could potentially cause a conflict with a future biojava version.
If so, this commit can probably be ommitted.
Adding options to CeSymmMain for significance and order detection.
Adding names to CeSymmMain displays
Reordering dependencies to use the correct commons-cli version
Adding version info to Manifest
Moving CeSymmMain to symmetry-tools

https://github.com/rcsb/symmetry-tools