CLEAN SLATE again, ES6 style.
Moved entropy files to ./src.
Made entropy into an npm module.
Added grunt and a traceur compilation target.
Made the grunt task actually work.
Made compile task work with a specific files or all files, depending on input.
Added auto-compile based on watching src dir.
Added Set class, with has, add, remove, slice, map, filter, and toArray.
Fixed s.slice.
Overwrote some array methods with blank functions (for now at least), so they don't mess up the sets.
Added s.toString.
Made s.add and s.remove take infinite arguments.

Note:  s.remove is broken until I add s.splice.
Made the set constructor add any passed arguments to the set on creation.
Added s.splice.
Added s.empty and renamed a file.
Fixed s.remove.
Added set operations s.union, s.intersection, s.difference, and s.symmetricDifference.
Improved some of the set operations.
Made entropy a class extending Set.
Added S.create as an alias to new S.Set.