Updated the error handling sample to 4.4.0
Updated the FullDuplex sample to 4.4.0
Updated the gateway sample to 4.4.0 and cleaned up the app.config for SiteB to remove the remnant NHibernate settings.
Updated the pub/sub sample to 4.4.0
Updated the scale out sample to version 4.4.0
Updated the VideoStore sample to version 4.4.0