Finish getting ASP.NET to work with SQL Server

1. Add aspnet-sqlserver-raw and aspnet-sqlserver-entityframework tests.
2. Don't share DbParameter object between two SqlCommand objects because
   SqlCommand objects.
3. Get SQL Server working with the Entity Framework.
4. Tidy up T-SQL.
5. Fix typo in setup-sqlserver-bootstrap.ps1 with config path.
6. Complete SQL Server setup and configuration in setup-sqlserver.ps1.
Update README.md for SQL Server instructions