Fix error invaild id Article in sql.

Fix some error with sql.
Change layout featured into option that only show article featured.
Compatible with joomla 3.3.

1. Fix displaying problem with Portfolio's types: quote, audio,link.
2. Add new css for all layout.

1. Fixed problem display content in layout "Tabs".
2. Added new layout Responsive carousel slider.
3. Use Flexslide script for "Slider" layout.

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