Adds documentation to apploader#reset

Author: halemmerich

lib/apploader.js

@@ -26,6 +26,11 @@ var apps = [];
 var device = { id : DEVICEID, appsInstalled : [] };
 var language; // Object of translations
 
+/* This resets the list of installed apps to an empty list.
+  It can be used in case the device behind the apploader has changed
+  after init (i.e. emulator factory reset) so the dependency
+  resolution does not skip no longer installed apps.
+*/
 exports.reset = function(){
   device.appsInstalled = [];
 }