Fixed #281 - Comparisons fail after 5 second timeout

This is a bit of a hack but this code is going to go away soon so it's OK.

api/thermostat_group.php

@@ -429,6 +429,9 @@ class thermostat_group extends cora\crud {
    * @return array
    */
   public function get_scores($type, $attributes) {
+    // See #281
+    set_time_limit(30);
+
     // All or none are required.
     if(
       (