bumped upper bounds xhtml to < 3000.5

Author: stepcut

happstack-server.cabal

@@ -104,7 +104,7 @@ Library
                        transformers           >= 0.1.3 && < 0.7,
                        transformers-base      >= 0.4   && < 0.5,
                        utf8-string            >= 0.3.4 && < 1.1,
-                       xhtml                              < 3000.4,
+                       xhtml                              < 3000.5,
                        zlib
 
   hs-source-dirs:      src