fix JsonSerializer

Author: IvAlex1986

src/ServiceStack.Redis/RedisDataInfoExtensions.cs

@@ -1,7 +1,7 @@
-using System;
+using ServiceStack.Text;
+using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Web.Script.Serialization;
 
 namespace ServiceStack.Redis
 {
@@ -40,7 +40,7 @@ private static String Parse(String source)
                 }
             }
 
-            return new JavaScriptSerializer().Serialize(result);
+            return JsonSerializer.SerializeToString(result);
         }
 
         private static IEnumerable<String> SplitRows(String source)

src/ServiceStack.Redis/ServiceStack.Redis.csproj

@@ -135,7 +135,6 @@
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
     <Reference Include="System.Net" />
-    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Xml.Linq">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>