Hook up ravenDB profiler

followed docs, and added code to global.asax.cs and _layout.cshtml.

In addition, added nuget dependency on RavenDB.Client.MvcIntegration.2.0.2283-Unstable

However, profiler is not showing any queries:( _ I was going to put a comment on Ayende's blog to get his opinion, but let me know if you can get this working