Add nin (not in) operator
Bump version
Merge pull request #27 from johnnyg/not-in-operator

Not in (nin) operator
Add encoding to tests with unicode characters

so that we can run the tests
Fix queries on dicts with no keys

This mainly fixes queries where we want
to know if the dict is empty or not.
Bump version
Merge pull request #28 from johnnyg/fix-dict-queries

Fix queries on dicts with no keys