Update controllers docs.
Inline API docs for View.

Remove a bunch of properties and methods that are already covered.
Update info regarding returning response instance from action.
Remove reference to old $pageTitle view var.
Update info regarding render()'s arguments.
Removing paragraphs wehre lazy loading was not used

Helpers are lazy loaded, no need to warn users about having to declare them in the controller if they have the $helpers property
Replacing SOAP with JSON, it is a better example
Adding note about optimizing class autoloading
Correct typos.
Merge pull request #1574 from cakephp/3.0-proof-pt6

3.0 proof pt6