Changed the fitness function in the simulator. Added a minimum number of actions indicator. Fixed a bug where two nodes of the same type would be connected in mutate_add_node
Merge branch 'davidlaptop'
Merge branch 'master' of github.com:jpha226/PetriNeat

Removed a bug cuasing two nodes of the same type to get a link between them.
Also changed the fitness function and added a measure of the minNumActions.