Fix reference to renamed project

Author: Redth

source/buildtasks/annotation-tests/Annotation-BuildTasks-Tests.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">
   <Import Project="..\..\packages\xunit.runner.visualstudio.2.4.0\build\net20\xunit.runner.visualstudio.props" Condition="Exists('..\..\packages\xunit.runner.visualstudio.2.4.0\build\net20\xunit.runner.visualstudio.props')" />
   <Import Project="..\..\packages\xunit.core.2.4.0\build\xunit.core.props" Condition="Exists('..\..\packages\xunit.core.2.4.0\build\xunit.core.props')" />
@@ -49,6 +49,7 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
   </ItemGroup>
+  <ItemGroup />
   <ItemGroup>
     <Folder Include="TestData\" />
   </ItemGroup>