Deprecate singleOrFail() in favour of sole()

app/Http/Controllers/ZoneController.php

@@ -69,7 +69,7 @@ class ZoneController extends Controller
 			$o->save();
 			$zo = Zone::where('zone_id',$request->zone_id)
 				->where('domain_id',$request->domain_id)
-				->singleOrFail();
+				->sole();
 
 			// Find the zones 0/0 address, and assign it to this host.
 			$ao = Address::where('zone_id',$zo->id)