TVTennis examples show several qml animation bugs

Using the animations example and clicking on the "TV Tennis" example, you instead of getting a good example of QML get an example of at least 3 bugs.

First thing you notice is that the paddles do not follow the ball. Apparently binding y and having a behavior on it doesn't work:

       y: ball.direction == 'left' ? ball.y - 45 : page.height/2 -45;
       Behavior on y { SpringAnimation{ velocity: 300 } }

Removing the behavior makes the paddles follow the ball.

Second issue is that resizing the window does not affect the balls x coordinate animation. It was defined as:

            NumberAnimation { to: page.width - 40; duration: 2000 }

Apparently 'to' isn't updated when page.width is.

Third, randomly the y animation of the ball will flatline when resizing. This might just be a bug in the example. Likely the spring-animation reaches its destination because its target isn't updated with page.height.