Improve 3A+ case, making it easier to take the pi out. Improve the fit of the Z2 case.

Make it possible for a hub to reload a config automatically when it changes without being restarted.
Prevent the auto-calibration on first install from being stomped by the app.
Allow updating the hub software via the app.

rules/lantern-service-rules/src/main/java/com/lanternsoftware/rules/RulesEngine.java

@@ -113,6 +113,12 @@ public class RulesEngine {
 		timer.schedule(nextTask, nextDate);
 	}
 
+	public void schedule(TimerTask _task, long _delay) {
+		if (timer == null)
+			return;
+		timer.schedule(_task, _delay);
+	}
+
 	public static void shutdown() {
 		if (INSTANCE == null)
 			return;