default arguments for Markov economy fail on getEconomyData step

[sbenthall]

Running this code, simplified from KrusellSmith DemARK:

from HARK.ConsumptionSaving.ConsAggShockModel import AggShockMarkovConsumerType, CobbDouglasMarkovEconomy

agent = AggShockMarkovConsumerType()
economy = CobbDouglasMarkovEconomy(
    agents = [agent])

agent.getEconomyData(economy) # Makes attributes of the economy, attributes of the agent
``

Gets this error:

$ python consagg.py Traceback (most recent call last): File "consagg.py", line 7, in agent.getEconomyData(economy) # Makes attributes of the economy, attributes of the agent File "/home/sb/projects/econ-ark/HARK/HARK/ConsumptionSaving/ConsAggShockModel.py", line 170, in getEconomyData self.addAggShkDstn(Economy.AggShkDstn) # Combine idiosyncratic and aggregate shocks into one dstn File "/home/sb/projects/econ-ark/HARK/HARK/ConsumptionSaving/ConsAggShockModel.py", line 400, in addAggShkDstn self.IncomeDstn = self.IncomeDstnWithoutAggShocks AttributeError: 'AggShockMarkovConsumerType' object has no attribute 'IncomeDstnWithoutAggShocks'

If this is the correct way to call this function, the default parameters for the two classes should support it without error