Use VSIX version for the targets VSIX

Author: paulvanbrenk

Nodejs/Setup/swix/Microsoft.VisualStudio.NodejsTools.Targets.swixproj

@@ -17,7 +17,7 @@
     <TargetPath>$(BuildOutputRoot)Setup\Microsoft.VisualStudio.NodejsTools.Targets.vsix</TargetPath>
     <WebRoleDll Condition="'$(SignedBinariesPath)' != ''">$(SignedBinariesPath)\Microsoft.NodejsTools.WebRole.dll</WebRoleDll>
     <WebRoleDll Condition="'$(SignedBinariesPath)' == ''">$(BuildOutputRoot)\Binaries\WebRole\Microsoft.NodejsTools.WebRole.dll</WebRoleDll>
-    <PackagePreprocessorDefinitions>$(PackagePreprocessorDefinitions);BuildOutputRoot=$(BuildOutputRoot);BuildVersion=$(MsiVersion);WebRoleDll=$(WebRoleDll)</PackagePreprocessorDefinitions>
+    <PackagePreprocessorDefinitions>$(PackagePreprocessorDefinitions);BuildOutputRoot=$(BuildOutputRoot);BuildVersion=$(VSIXBuildVersion);WebRoleDll=$(WebRoleDll)</PackagePreprocessorDefinitions>
     <!--Retrigger a build on webrole.dll to pick up signed version. TODO: see if there's a better way to do this.-->
     <MSBuildAllProjects>$(WebRoleDll)</MSBuildAllProjects>
   </PropertyGroup> 
@@ -50,4 +50,4 @@
   </ItemGroup>
 
   <Import Project="$(PackagesPath)\MicroBuild.Core.0.2.0\build\MicroBuild.Core.targets"/>
-</Project>
+</Project>