bump version

Author: kedarv

sources/admin/main.php

@@ -20,7 +20,7 @@
 				$current_tags = file_get_contents("https://api.github.com/repos/greenelfx/maplebit/tags", false, $context);
 				if ($current_tags) {
 					$tags = json_decode($current_tags);
-					$ref_tag = "v1.15";
+					$ref_tag = "v1.16";
 					$current_tag = $tags[0]->name;
 					if ($current_tag == $ref_tag) {
 						$alert_class = "success";