Small feature update

Implemented some of the missing features as described in the previous blog. Now you can right click on an actor and get the world position of the click point. Furthermore I implemented a debug section in the scene file where you can globally override selected attributes on other elements of the scene file, such as 'showAABB', showName' etc. I've also begun the rendering of triggers, but they are not quite done yet. Finally, I've made some documention strings for the script bindings, but this is a very cumbersome job and will be made in stages. But we severely need some API docs, so it will have to be done soon.