adding pre-build command to set version number for release builds

VectoCommon/VectoHashing/Impl/XmlHashProvider.cs

@@ -9,7 +9,7 @@ namespace TUGraz.VectoHashing.Impl
 	{
 		public static XmlDocument ComputeHash(XmlDocument doc, string elementId)
 		{
-			if (doc == null /*|| doc.DocumentElement == null*/) {
+			if (doc == null) {
 				throw new Exception("Invalid Document");
 			}
 			var signedXml = new SignedXml(doc);

VectoCommon/VectoHashing/VectoHashing.csproj

@@ -76,6 +76,9 @@
     <Service Include="{508349B6-6B84-4DF5-91F0-309BEEBAD82D}" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <PropertyGroup>
+    <PreBuildEvent>if $(ConfigurationName) == Release  forfiles /p "$(ProjectDir)." /m "*.tt" /s /c "cmd /c echo Transforming @path &amp;&amp; \"%25CommonProgramFiles(x86)%25\Microsoft Shared\TextTemplating\12.0\TextTransform.exe\" @file"</PreBuildEvent>
+  </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">