update : function update() {
logger.log('update');
// Only FFOS supports update (in non-packaged hosted mode)
// This occurs when manifest installed in the device
// has older version than manifest updated by the appcache
// a new mozApp.install is required (so that user can re-approve manifest.webapp)
install.install();
location.hash = '#/about';
},
install : function install() {
logger.log('install');
install.install();
location.hash = '#/about';
},