See #3 - Adds BaseModel to extend Todo\Models from, Task, and TaskSpec

- Adds `app/Todo/Models/BaseModel.php`
- Spec/Define relationships
    - Task belongsTo('Todo\Models\User');
    - Task hasMany('Todo\Models\Tag');
    - Task hasMany('Todo\Models\Comment');
See #3 - Updates testing.database config (copies development.database)
See #3 - Adds Comment, Tag, and User starter Classes

- Only declares namespace and extends BaseModel

@kchunterdeluxe I needed to add these to get the tests passing ... I wonder if there is a better way around that.
These files should get you started. I'm sticking with just the Task and Comment classes.