Add model
Add sample son
Renamed sample JSON
Add basic test for many-to-many
Added sample JSON
Prefix and clean up categories
Predicate should be skipped if inverseRelationship is too many
Basic support for many-to-many
Remove silly
Improve many-to-many

- Add safety for setting up to-many relationships.
- Provide a way to enable/disable logs
Remove unused methods and prefix
Remove crazy logs
Sort private methods
Merge pull request #5 from NSElvis/feature-many-to-may

Feature many to may