Version 2: Schema improvements and reliability improvements

Changes

• Add nullable to the Schema builder
• Introduced interfaces you can use to indicate that your model is using certain traits

Backwards compatibility

backward compactibility is broken due to:

• changes in the culpa.users.active_user configuration, which now returns a user instead of an identifier
• The bleameable trait no longer works on models who arent extending from the Eloquent model. I've type hinted them because i needed more consistency in the code.