[tooltip] Reference element setter.
Merge pull request #184 from szkl/master

[tooltip] Reference element setter.
[GestureHandler] Fix up/down swipe direction recognition.
[ui][ComponentManager] Remove meaningless commented out code.
[ui][ComponentManager] Attach listeners automatically, without listening to the window's load event.
[mvc][Renderer] Add a beforeViewRender method to tart.mvc.Layout that executes before any action rendering.
[GestureHandler] Swipes occur for 100 ms and gestures longer than that disable any swipe possibility.