[improve instance Pretty HSpace
Helmut Grohne <grohne@cs.uni-bonn.de>**20140214152254
 Ignore-this: e6875e88bc3e2b043c0cd9845c4938a7
 
 A HSpace contains each RatingData twice. Once as the priority of the BagHeap
 and once inside the value in Hypo. Thus it is enough to pretty-print the values
 of the BagHeap.
] hunk ./src/Igor2/Data/HypoSpace.hs 91
-                        text "Rating -> Hypo:" <^> indent 2 (vcat . (map asMap) .  H.toList . heap $ hsp)
---                        text "Rating -> HypoID:" <^> pretty (rateIdsMap hsp) <$> 
---                        text "Rule   -> HypoID:" <^> pretty (ruleIdsMap hsp) <$> 
+                        text "Rating -> Hypo:" <^> indent 2 (vcat . map pretty . H.elems . heap $ hsp)
+--                        text "Rating -> HypoID:" <^> pretty (rateIdsMap hsp) <$>
+--                        text "Rule   -> HypoID:" <^> pretty (ruleIdsMap hsp) <$>