Remove missing files, update Windows references

Source/Platform/Microsoft.Tools.TeamMate.Platform.csproj

@@ -22,8 +22,6 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="CodeBox\DataSetUtilities.cs" />
-    <Compile Include="CodeBox\Release\ReleaseExtensions.cs" />
-    <Compile Include="CodeBox\Release\ReleaseInfo.cs" />
     <Compile Include="CodeFlow\CodeFlowConstants.cs" />
     <Compile Include="CodeFlow\CodeFlowContext.cs" />
     <Compile Include="CodeFlow\CodeFlowMailGenerator.cs" />

Source/WindowsRuntime/Microsoft.Tools.TeamMate.WindowsRuntime.csproj

@@ -28,7 +28,9 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
-    <Reference Include="Windows" />
+    <Reference Include="Windows.Data" />
+    <Reference Include="Windows.Foundation" />
+    <Reference Include="Windows.UI" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />