Fixes in project files.

* don't copy another copy of NewtonSoft.Json
* don't break project load when there's a missing NuGet pkg

Author: Paul van Brenk

Nodejs/Product/InteractiveWindow/InteractiveWindow.csproj

@@ -61,7 +61,7 @@
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Newtonsoft.Json.9.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
-      <Private>True</Private>
+      <Private>False</Private>
     </Reference>
     <Reference Include="stdole, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
       <EmbedInteropTypes>True</EmbedInteropTypes>

Nodejs/Product/Npm/Npm.csproj

@@ -34,7 +34,7 @@
   <ItemGroup>
     <Reference Include="Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Newtonsoft.Json.9.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
-      <Private>True</Private>
+      <Private>False</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />

Nodejs/Product/TestAdapter/TestAdapter.csproj

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props" />
+  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props" Condition="Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props')" />
   <PropertyGroup>
     <MinimumVisualStudioVersion>15.0</MinimumVisualStudioVersion>
     <NuGetPackageImportStamp>
@@ -191,5 +191,5 @@
     <Error Condition="!Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props'))" />
     <Error Condition="!Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets'))" />
   </Target>
-  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets" />
+  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets" Condition="Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets')" />
 </Project>

Nodejs/Product/TestAdapterShim/TestAdapterShim.csproj

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props" />
+  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props" Condition="Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props')" />
   <Import Project="..\ProjectBefore.settings" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" />
   <PropertyGroup>
@@ -60,5 +60,5 @@
     <Error Condition="!Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props'))" />
     <Error Condition="!Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets'))" />
   </Target>
-  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets" />
+  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets" Condition="Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets')" />
 </Project>

Nodejs/Product/TestAdapterVsix/TestAdapterVsix.csproj

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props" />
+  <Import Project="..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props" Condition="Exists('..\..\packages\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props')" />
   <Import Project="..\VsixProjectBefore.settings" />
   <PropertyGroup>
     <MinimumVisualStudioVersion>15.0</MinimumVisualStudioVersion>