change bounds for servant, version bump

Author: alpmestan

servant-ede.cabal

@@ -1,5 +1,5 @@
 name:                servant-ede
-version:             0.5
+version:             0.5.1
 synopsis:            Combinators for rendering EDE templates in servant web applications
 description:
   Combinators for rendering EDE templates in servant web applications.
@@ -38,12 +38,11 @@ library
     , http-media >= 0.6 && <0.7
     , http-types >= 0.8 && <0.9
     , semigroups >= 0.16 && <0.17
-    , servant >= 0.4 && <0.5
+    , servant >= 0.4 && <0.6
     , text >= 1.0 && <1.3
     , transformers >= 0.4 && <0.5
     , unordered-containers >= 0.2 && <0.3
     , vector >= 0.9 && <0.11
-    , wai >= 3.0 && <3.1
     , xss-sanitize >= 0.3 && <0.4
 
   ghc-options:         -O2 -Wall