v19.0.OS (#35)

* Updates from pro v19

* Update travis

* Update db script

* Update docs

* change build script

ext/admin/travel/api/TravelAdminManager.php

@@ -152,4 +152,4 @@ if (!class_exists('EmployeeTravelRecordApproval')) {
 			return $this->findApprovals(new EmployeeTravelRecord(), $whereOrderBy,$bindarr,$pkeysArr,$extra);
 		}
 	}
-}
+}