+ localization.py
++ list of possible position when lack of information in pe_clust

+ Agent.py/Person3.py
++ forbiden room by agent can be setup
++ wait time by agent can be setup

+ Network.py
++ new save option (temporary option, will be replace by a global save
++ BUG FIX : node not created when node ID was > 9
process)

+ Steering Behaviour
++ New wall virtual force model ( \lambda / R**2)

+ simulnet.py
++ compliant with new agent.py/Person3.py

+ agent.ini
++ compliant with new agent.py.Person3.py