Requiring aivika 1.2.1
Separating the charting module from rendering back-ends.
Adjusting to the recent changes in Aivika Experiment.
The file extension is passed in the chart renderer.
Added the source repository.
The file extension must be replaced before resolving the file path.
Now the example models can be run using either Chart-cairo or Chart-diagrams.
Updated examples are added to the cabal file.