Get initialiseSim() to pass errors on rather than continuing
Added text progress indicator
Further #10, provide setAgentIntialValue(String, int)
Made some more println statements respect verbose
Added printAgentAgentInteractions() to give simplified map of kappa model
Slightly more logical ordering of functions
Added ability to create transition in API and in python
Reused code from getAgent() in addAgent() and setAgentInitialValue()
Beginning of unittest suite
More tests for addAgent()
Removed cruft
First stab at fix for #12: Allow variables to be created within python