small tweaks

nifty5/energies/kl.py

@@ -24,7 +24,6 @@ class SampledKullbachLeiblerDivergence(Energy):
         return self.__class__(self._h.at(position), self._res_samples,
                               self._iteration_controller)
 
-
     @property
     @memo
     def value(self):

nifty5/models/multi_model.py

@@ -25,7 +25,8 @@ from .model import Model
 class MultiModel(Model):
     """ """
     def __init__(self, model, key):
-        # TODO Rewrite it such that it takes a dictionary as input. Just like MultiFields.
+        # TODO Rewrite it such that it takes a dictionary as input.
+        # (just like MultiFields).
         super(MultiModel, self).__init__(model.position)
         self._model = model
         self._key = key