Update version 3.0.6

Change log:
- Rename class name in plugin Example of group tz_portfolio.
- Layout type doesn't display in the Portfolio and the Timeline page.
- Parameters in the article don't receive in the Portfolio and Timeline
view.
- The extrafield's image width is resized.
- Tags can suggest when create or edit the article.
- The image title, image slider title and the video title not display
with character quote.
- Category can not upload image.