Dependency injection for external data

[perrygeo]

Currently, if your objective function relies on any external data it must be defined in the enclosing scope. It would be nice to allow required data to be specified with __init__. Maybe that just means testing and documenting this technique...

class Optimizer(Annealer):
    def __init__(self, state, moredata, extradata):
        self.moredata = moredata
        self.extradata = extradata
        super(Optimizer, self).__init__(state)