3.0 - WIP - Added accessor method getView() to ViewVarsTrait.

Let me know if this seems worth pursing.

`AppView` allows setting defaults and then in controller you would use `$this->getView()->foo` to modify stuff as needed. `Controller::$helpers` and similar view related properties would be gone.
Not related to your change, but recently saw that using `ReflectionClass` is actually *faster* and *cleaner* than explode; http://stackoverflow.com/questions/19901850/how-do-i-get-an-objects-unqualified-short-class-name (see the second answer). Not sure if this use used elsewhere in CakePHP, but may be a PR on itself