Upgrade to VS2012 with backwards compability

Author: dnauck

project/WebDashboard/WebDashboard.csproj

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <ProjectTypeGuids>{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
     <ProductVersion>9.0.30729</ProductVersion>
@@ -27,7 +28,7 @@
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <OldToolsVersion>3.5</OldToolsVersion>
+    <OldToolsVersion>4.0</OldToolsVersion>
     <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <UseIISExpress>false</UseIISExpress>
   </PropertyGroup>
@@ -923,6 +924,10 @@
   <ItemGroup>
     <Folder Include="Properties\" />
   </ItemGroup>
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PreBuildEvent>
@@ -949,5 +954,6 @@ xcopy/y/q "$(SolutionDir)\xsl\*.xsl" "$(ProjectDir)\xsl"</PostBuildEvent>
       </FlavorProperties>
     </VisualStudio>
   </ProjectExtensions>
-  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" Condition="exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets')" />
+  <Import Project="$(VSToolsPath)\WebApplications\Microsoft.WebApplication.targets" Condition="'$(VSToolsPath)' != ''" />
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" Condition="false" />
 </Project>