Resolve "Introduce conditional prior sets"

Closes #270 (closed)

PP test show that the new capabilities do not interfere with the results we are getting so far. This test is done without any conditional priors, it just shows that everything still works as expected.

https://ldas-jobs.ligo.caltech.edu/~moritz.huebner/conditional_prior_pp/outdir_pp_test_4s/pp.png

bilby/core/prior.py

@@ -501,6 +501,8 @@ class ConditionalPriorDict(PriorDict):
 
     def _resolve_conditions(self):
         self.convert_floats_to_delta_functions()
+        self.conditioned_keys = []
+        self.unconditioned_keys = []
         for key in self.keys():
             if hasattr(self[key], 'condition_func'):
                 self.conditioned_keys.append(key)
@@ -3334,6 +3336,7 @@ def conditional_prior_factory(prior_class):
                                                    unit=unit, boundary=boundary, **reference_params)
             self.condition_func = condition_func
             self._reference_params = reference_params
+            self.__class__.__name__ = 'Conditional{}'.format(prior_class.__name__)
 
         def sample(self, size=None, **required_variables):
             """Draw a sample from the prior