Deprecate singleOrFail() in favour of sole()

app/Classes/FTN/Packet.php

@@ -160,7 +160,7 @@ abstract class Packet extends FTNBase implements \Iterator, \Countable
 			try {
 				$o->zone = Zone::where('zone_id',$o->fz)
 					->where('default',TRUE)
-					->singleOrFail();
+					->sole();
 
 			} catch (ModelNotFoundException $e) {
 				throw new InvalidPacketException(sprintf('%s:! We couldnt work out the packet zone, and there isnt a default for[%d]',self::LOGKEY,$o->fz));