Added Email & UpdateSettings flags

Keep code from failing if _LinkLocations is null
Add PromsPrinter to constructor for VlnPageHelper

PROMS/Volian.Controls.Library/StepRTB.cs

@@ -2244,6 +2244,7 @@ namespace Volian.Controls.Library
 		private LinkLocation FindBetweenLinks(int start)
 		{
 			DebugPrint("FL----------------Between>");
+			if (_LinkLocations == null) return null;
 			foreach (LinkLocation ll in _LinkLocations)
 				if (ll.Start == start && ll.StartsBetween)
 					return ll;