BHV-754 Close panels if sequential left input is occurred on index 1.

If panels uses handle, left key input on 0 index makes panels hide.
So if we give sequential left key input on 1 index, it should hide panels.
However current setIndex() misses that process.

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
Merge pull request #1344 from enyojs/BHV-754-davidum

BHV-754 Close panels if sequential left input is occurred on index 1.

Reviewed-by: Aaron Tam (aaron.tam@lge.com)