Nxsim

- Working version using a dictionary or any subscriptable type as state
Changed
- Renamed agents.LoggingAgent to agents.BaseLoggingAgent to promote subclassing.
Fixed
- States are no longer limited to integers. States can be any object as long as it is subscriptable with an "id" key.

- Working version using integer states.
Added
- Added State namedtuple declaration inside agents.BaseAgent.
- Added assertions to make "required" keyword arguments.
- agent.BaseAgent class for making node agents.
Changed
- simulation.NetworkSimulation.addNewNode is not part of agents.BaseEnvironmentAgent.
- Changed attribute, method and function names from CamelCaps to underscore_separated.
- Refactored logging.Logger into agents.LoggingAgent. Deleted logging.py

Initial commit
Added
- README contains short inital description of the project
- Forked from ComplexNetworkSim [https://github.com/jschaul/ComplexNetworkSim]