Finished upgrade of sample app to MVC4

Finished upgrade of sample app to MVC4
Updated readme

Updated readme
Updated assemblyinfo files

Updated assemblyinfo files
Switch to IISExpress

Switch to IISExpress
Added MvcSiteMapProvider.Core and MvcSiteMapProvider.Web projects

Added MvcSiteMapProvider.Core and MvcSiteMapProvider.Web projects
Preparing new project structure

Preparing new project structure
Updated build script

Updated build script