Removed WebExpress support

Author: madskristensen

EditorExtensions/Source.extension.vsixmanifest

@@ -14,7 +14,7 @@
     </Metadata>
     <Installation InstalledByMsi="false">
         <InstallationTarget Id="Microsoft.VisualStudio.Pro" Version="[12.0.31101,13.0)" />
-        <InstallationTarget Id="Microsoft.VisualStudio.VWDExpress" Version="[12.0.31101,13.0)" />
+        <!--<InstallationTarget Id="Microsoft.VisualStudio.VWDExpress" Version="[12.0.31101,13.0)" />-->
     </Installation>
     <Dependencies>
         <!--<Dependency Id="Microsoft.Framework.NDP" DisplayName="Microsoft .NET Framework" d:Source="Manual" Version="[4.5,)" />