This commit changes the examples to using ol.control.defaults().extend to extend the collection of controls. This is in preparation for a future commit that will remove the 2nd argument to ol.control.defaults. The same is done for ol.interaction.defaults.
Setting the renderer of the ten-thousand-points example to
WebGL should remove the need for this stub. This is basically
the same approach we took for all vector examples in master,
where we set the renderer to Canvas.
