Fix the OData feed on preview which was a) throwing null refs b) missing a whole lot of data in fields (now that they are coming from Lucene instead of the DB) causing a blank UI to show once the throwing thing was fixed. Removed PackageIndexEntity class as it wasn't pulling much weight.
Add unit test for driving the V2 feed using the Lucene Index!
Ensured unit tests passed.
Clean up redundant lines in Packageservice.cs
Make App_Start robust to the database connection not working. With these changes the nuget.org home page can load even though the database is offline. :)