Cleanup to test PR building.

project/vc12/Nvidia.TextureTools.UnitTests/Nvidia.TextureTools.UnitTests.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -25,10 +25,12 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="System" />
-    <Reference Include="nunit.framework">
+    <Reference Include="nunit.framework, Version=3.9.0.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
       <HintPath>..\packages\NUnit.3.9.0\lib\net45\nunit.framework.dll</HintPath>
+      <SpecificVersion>False</SpecificVersion>
+      <Private>True</Private>
     </Reference>
+    <Reference Include="System" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Test.cs" />