FormSample: Scroller's option 'circle' is added.
FormSample: Scroller's option 'circle' is added.

To apply new 'Focus UI', 'circle: true' is added to Scroller.

Enyo-DCO-1.1-Signed-off-by: Seungcheon Baek (sc.baek@lge.com)

enyojs/enyo-strawman