quicklaunch:compat w app history of Fastload Utils

Compatibility with 'Fastload Utils' App History feature by checking the trace on launch

remove some spaces

correct logic for checking the trace at launch `!=` -> `==`

apps/quicklaunch/ChangeLog

@@ -15,3 +15,4 @@
 	new key names.
 0.13: Touch and hold to pause the timeout to clock temporarily.
 0.14: Extension: Don't go down a path if nothing waits at the end. Revisit the current intersection instead.
+0.15: Extension: Compatibility with "Fastload Utils" app history feature.

apps/quicklaunch/app.js

@@ -24,7 +24,7 @@
     }
   };
 
-  let trace = settings.trace;
+  let trace = (settings[settings.trace+"app"].src=="quicklaunch.app.js") ? settings.trace : settings.trace.substring(0, settings.trace.length-1); // If the stored trace leads beyond extension screens, walk back to the last extension screen. Compatibility with "Fastload Utils" App History feature.
 
   let touchHandler = (_,e) => {
     if (e.type == 2) return;

apps/quicklaunch/metadata.json

@@ -2,7 +2,7 @@
   "id": "quicklaunch",
   "name": "Quick Launch",
   "icon": "app.png",
-  "version": "0.14",
+  "version": "0.15",
   "description": "Tap or swipe left/right/up/down on your clock face to launch up to five apps of your choice. Configurations can be accessed through Settings->Apps.",
   "type": "bootloader",
   "tags": "tools, system",