Improvements in state handling, work on condition events.
Further work on event states.
Improved state handling.
Removed Undo, to follow more closely the SimPy model.
Improving event sharing.
Tests for condition sharing, fixed movie renege example.
Custom pytest runner works on simple examples.
Added some stubs for pytest.
Cleaned up SimPy layer.
Small fixes for the pytest runner.
Package cleanup, small additions to resource interfaces.
Implemented FilterStore.
Added Release to Resource.
Draft implementation for PreemptiveResource.
Refactoring...
Refactoring and cleanup...
Tests for PreemptiveResource.
Added project for benchmarks.
Converted benchmarks in F#.
Major changes to the main cycle, not working properly.