implemented widget_utils

apps/rebble/ChangeLog

@@ -9,3 +9,4 @@
 0.09: fix battery icon size
 0.10: Tell clock widgets to hide.
 0.11: fix issue https://github.com/espruino/BangleApps/issues/2128 (#2128) ( settings undefined )
+0.12: implemented widget_utils 

apps/rebble/metadata.json

@@ -2,7 +2,7 @@
   "id": "rebble",
   "name": "Rebble Clock",
   "shortName": "Rebble",
-  "version": "0.11",
+  "version": "0.12",
   "description": "A Pebble style clock, with configurable background, three sidebars including steps, day, date, sunrise, sunset, long live the rebellion",
   "readme": "README.md",
   "icon": "rebble.png",

apps/rebble/rebble.app.js

@@ -309,16 +309,8 @@ else{
 }
 
 
-g.clear();
 Bangle.loadWidgets();
-/*
- * we are not drawing the widgets as we are taking over the whole screen
- * so we will blank out the draw() functions of each widget and change the
- * area to the top bar doesn't get cleared.
- */
-for (let wd of WIDGETS) {wd.draw=()=>{};wd.area="";}
-
-
+require("widget_utils").hide();