3.0 - Cleanup

Just some minor code and docblock cleanup
On a second look, View uses `View::$viewVars` to specifically refer to the data, while this is actually refering to the names of the view variables, so maybe **view variables** would be better... but I had too much Whiskey to be able to trust myself on this right now :cocktail: (why is there no [**Whiskey Emojy**](http://www.whiskyemoji.com/), I feel discriminated :bangbang:).