@property
    def traj(self):
        return self.trajectory
setup all our socket connections to the cluster. This is called from
dataset/ETHPy150Open SmokinCaterpillar/pypet/pypet/environment.py/Environment.traj--crossover with--dataset/ETHPy150Open ipython/ipython-py3k/IPython/parallel/client/client.py/Client._connect