Fixed issues with StrongNameKey.pfx

UnitTests/UnitTests.csproj

     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup>
+    <SignAssembly>true</SignAssembly>
+  </PropertyGroup>
+  <PropertyGroup>
+    <AssemblyOriginatorKeyFile>StrongNameKey.pfx</AssemblyOriginatorKeyFile>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
     <Reference Include="System" />
     <None Include="documents\Paragraphs.docx" />
     <None Include="documents\Tables.docx" />
     <None Include="documents\Template.dotx" />
+    <None Include="StrongNameKey.pfx" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="documents\green.jpg" />