Timeline-Viewer: Check if it can be simplified.
While I was splitting the Annotations-Stream I copied the code from the annotations-stream directly in to the timeline-viewer.
See #1193 (closed)
It works as before but I think there is a lot of potential to make the code more simple. There is also a lot of code which we are not using at the moment. This should be checked again as soon as we extend the TImeline-viewer.