Missed one nuget path, ignore packages in gitignore (#191)

Author: jplafonta

.gitignore

@@ -24,6 +24,9 @@ ExportedObj/
 *.svd
 *.log
 
+#nuget packages
+External/Packages/*
+
 #CppSource files to ignore
 CppSource/External/Packages/*
 CppSource/Obj/

CSharpSource/Source/Microsoft.Xbox.Services.UnityEditor.CSharp/Microsoft.Xbox.Services.UnityEditor.CSharp.csproj

@@ -54,11 +54,11 @@
   <ItemGroup>
     <Reference Include="mscorlib" />
     <Reference Include="Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL" Condition="'$(TargetFrameworkVersion)' == 'v3.5'">
-      <HintPath>..\..\external\packages\Newtonsoft.Json.9.0.1\lib\net35\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\..\..\External\packages\Newtonsoft.Json.9.0.1\lib\net35\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL" Condition="'$(TargetFrameworkVersion)' == 'v4.6.1'">
-      <HintPath>..\..\..\external\packages\Newtonsoft.Json.9.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\..\..\External\packages\Newtonsoft.Json.9.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />