Add `date` type which maps to `MongoDate` and refactor `parseValues`
Removes string type hint as there is no string class
Merge pull request #24 from timothy-r/master

Removes string type hint as there is no string class
Merge pull request #22 from jrschumacher/feat-add-date-type

Add `date` type which maps to `MongoDate` and refactor `parseValues`
Fix spacing for __call
Fix spacing for __call
Fix failing tests missing inital data
Add getter and setter method functionality

- Can now implement `getVar()` and `setVar()` either by convention or if implemented. See README for more detail.
- Moved `__call` to magic methods
- Implemented `__isset` for interoperability with libraries like Twig
- Moved `reference(s)/embed(s)` key to contants `DATA_TYPE_REFERENCE(S)/DATA_TYPE_EMDED(S)`
Add missing documentation for `MongoDB::setConfigBlock`