Implemented GUI for simulation output. Architecture of passing data to
widget very ugly, though. Probably needs fresh start.
Visualization of simulation data (partially) implemented. Suggesting
killings, both simulation and visualization, is still missing.
Simulation data visualization implemented. Suggested killings are
computed and visualized.
Simulation widget implemented, only progress bar (which probably will be
left out) is not working.
Stable version of simple simulation.
Commit before merge.
Conflicts from merging into master resolved.
Some refactoring performed. No changes to semantics.
Some refactoring, no semantic changes.