Refactored Bell permutations, with optimizations.
Fixed off by one error in readers.
Bumped scala version to 2.10.4.
Working version before migration to InhPermPermArray.
WIP optimized
Corrected bug in InhBaseGroup.elements
Performance optimizations to BitArray
Finished implementing the new BellPermutation with optimized support for binary outputs.
Started implementation of functions in Exp/Value.
Added eval() to Exp to return Double lower and upper bounds on an Exp.
Corrected bug in DiskComp.write for files in binned folders.
Added database index on expression hashes.
Changed case of svetlichny to lower case in tags and bounds.
Use new method call for Group.fixing.
BellExpression: do not recompute decomposition or remarkableMaximal if already computed.