Major changes: 1. Added field variables placeList and allTransitions to cach places and transitions. 2. Changed methods getPlaceList and getAllTransitions to take advantage of cached placeList and allTransitions. 3. Commented out getAllPlaces. Changed getPresetIndex and getPostsetIndex to call getPlaceList instead of getAllPlaces. 4. Auto-generated equals and hashCode.
Major changes:
1. Added field variables placeList and allTransitions to cach places and transitions.
2. Changed methods getPlaceList and getAllTransitions to take advantage of cached placeList and allTransitions.
3. Commented out getAllPlaces. Changed getPresetIndex and getPostsetIndex to call getPlaceList instead of getAllPlaces.
4. Auto-generated equals and hashCode.

MyersResearchGroup/iBioSim,MyersResearchGroup/iBioSim,MyersResearchGroup/iBioSim