Merge pull request #483 from sumitsahrawat/issue-482

Fix #482, bump lower bounds on aeson

ihaskell.cabal

@@ -55,7 +55,7 @@ library
   hs-source-dirs:      src
   default-language:    Haskell2010
   build-depends:       
-                       aeson                >=0.6 && < 0.9,
+                       aeson                >=0.7 && < 0.9,
                        base                 >=4.6 && < 4.9,
                        base64-bytestring    >=1.0,
                        bytestring           >=0.10,