Switched to elliptical display
Enabling artist renderer animations again
Switched to an Item, I don't need a transparent Rectangle here
Refactoring and cleanup
Making nodes clickable through mouse areas to report a change of main
node
Adding background
Reviewed style and visualization
Initial Implementation of Changing Main Node

Right now node is changed but previously discovered nodes are not added
to the graph view, only new updates show up.
Completed Code for Adding Previous Relationships to Nodes

This essentially finishes the project up to some refactoring, probably
adding more miners and taking care of some strange deadlock cases