[force a lazy monad for instance Rateable Hypo
Helmut Grohne <grohne@cs.uni-bonn.de>**20150310095023
 Ignore-this: 86fb83fee165d8cc1c7ac80cd823a4cd
 
 This speeds up the test suite by 3%.
] hunk ./src/Igor2/Data/Hypotheses.hs 192
-    rate h       = do 
+    rate h       = mapReaderT (return . runIdentity) $ do
hunk ./src/Igor2/Data/Hypotheses.hs 195
-      heu                  <- mapReaderT (return . runIdentity) $ heuristic h
+      heu                  <- heuristic h