Allow aeson 0.11

ihaskell-display/ihaskell-widgets/ihaskell-widgets.cabal

@@ -96,7 +96,7 @@ library
   
   -- Other library packages from which modules are imported.
   -- singletons 2.* require ghc 7.10.2
-  build-depends:       aeson >=0.7 && < 0.11
+  build-depends:       aeson >=0.7 && < 0.12
                      , base >=4.7 && <4.9
                      , containers >= 0.5
                      , ipython-kernel >= 0.6.1.2

ihaskell.cabal

@@ -54,7 +54,7 @@ library
   hs-source-dirs:      src
   default-language:    Haskell2010
   build-depends:
-                       aeson                >=0.7 && < 0.11,
+                       aeson                >=0.7 && < 0.12,
                        base                 >=4.6 && < 4.9,
                        base64-bytestring    >=1.0,
                        bytestring           >=0.10,
@@ -141,7 +141,7 @@ executable ihaskell
                        transformers         -any,
                        ghc                  >=7.6 || < 7.11,
                        process              >=1.1,
-                       aeson                >=0.7 && < 0.11,
+                       aeson                >=0.7 && < 0.12,
                        bytestring           >=0.10,
                        containers           >=0.5,
                        strict               >=0.3,
@@ -165,7 +165,7 @@ Test-Suite hspec
     default-language: Haskell2010
     build-depends:
         ihaskell,
-        aeson >=0.6 && < 0.11,
+        aeson >=0.6 && < 0.12,
         base >=4.6 && < 4.9,
         base64-bytestring >=1.0,
         bytestring >=0.10,

ipython-kernel/ipython-kernel.cabal

@@ -35,7 +35,7 @@ library
   hs-source-dirs:      src
   default-language:    Haskell2010
   build-depends:       base            >=4.6 && < 4.9,
-                       aeson           >=0.6 && < 0.11,
+                       aeson           >=0.6 && < 0.12,
                        bytestring      >=0.10,
                        cereal          >=0.3,
                        containers      >=0.5,