whitespace commit
JSONify objects in the set.
This is useful because trying to toString objects will result in the
same string, so, all objects would be treated the same, more or less.
Also, stringifying the objects would allow us to basically have a
comparator function because the string representation of the object
would either be unique or not.
A user would need to add a toJSON method to their objects to make sure
this behaves as they want, but the default functionality is probably
alright for regular objects.
Merge pull request #10 from gkatsev/jsonify

Jsonify incoming object items.