[add routines to Util.SetLike
John Meacham <john@repetae.net>**20060410045252] hunk ./Util/SetLike.hs 135
+    munionWith :: (v -> v -> v) -> m -> m -> m
hunk ./Util/SetLike.hs 146
+    munionWith = IM.unionWith
hunk ./Util/SetLike.hs 155
+    munionWith = M.unionWith