Fix merge error

Author: jcansdale

test/UnitTests/UnitTests.csproj

@@ -168,6 +168,7 @@
     <Reference Include="PresentationFramework" />
     <Reference Include="Serilog, Version=2.0.0.0, Culture=neutral, PublicKeyToken=24c2f752a8e58a10, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Serilog.2.5.0\lib\net46\Serilog.dll</HintPath>
+    </Reference>
     <Reference Include="rothko, Version=0.0.3.0, Culture=neutral, PublicKeyToken=9f664c41f503810a, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Rothko.0.0.3-ghfvs\lib\net45\rothko.dll</HintPath>
       <Private>True</Private>