mocha@1.12.0
Adds ability to pass an Array to hasMany.hasAccessor and also not passing any instance to hasAccessor and have it check for any associated item

Example:

```js
Person.hasPets([ ..., ... ], cb); // now it's possible
Person.hasPets(cb); // check if there any associations at all
```
Adds initial tests for Model.hasMany()
Adds Model.hasMany.delAccessor tests
Deprecates old simple hasMany.getAccessor test