computational-social-science

Add a new parameter alias type2score which can be used to set the score dictionary for both corpora at the same time in a WeightedAvgShift. Specifying a single dictionary using only type2score_1 is already possible, but a parameter type2score would be more natural. Just have to check if type2score is None, and if not, set type2score_1 as type2score. Existing code should then handle