Serve jQuery and jQuery-UI from Google's CDN

Comparing #2 with #3

Content

[...]
),
'widgetFactory'=>array(
'widgets'=>array(
'CJui<WidgetName>'=>array( // where <WidgetName> is the name of the JUI Widget (Tabs, DatePicker, etc.). Each CJuiWidget used must be declared
'scriptUrl'=>'//ajax.googleapis.com/ajax/libs/jqueryui/1/',
          'i18nScriptFile' => 'i18n/jquery-ui-i18n.min.js',
 
'theme'=>JUI-THEME,
'themeUrl'=>'//ajax.googleapis.com/ajax/libs/jqueryui/1/themes/',
),
// Repeat for other CJuiWidgets
),
),
[...]