added json.net refrence to nzbdrone.update

NzbDrone.Update/NzbDrone.Update.csproj

@@ -40,6 +40,10 @@
     <StartupObject />
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\Newtonsoft.Json.5.0.6\lib\net40\Newtonsoft.Json.dll</HintPath>
+    </Reference>
     <Reference Include="NLog, Version=2.0.1.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\NLog.2.0.1.2\lib\net40\NLog.dll</HintPath>

NzbDrone.Update/packages.config

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="Newtonsoft.Json" version="5.0.6" targetFramework="net40" />
   <package id="NLog" version="2.0.1.2" targetFramework="net40" />
   <package id="NLog.Config" version="2.0.1.2" targetFramework="net40" />
   <package id="NLog.Schema" version="2.0.1.2" targetFramework="net40" />