ENYO-3408: Provide handlers for ScrollMath properties

Some properties of ScrollMath should be handled from enyo.Scroller
instance. We provide some method for it

Enyo-DCO-1.1-Signed-off-by: David Um <david.um@lge.com>
GF-3408: From webos ver4, make it use translateScrollStrategy

Enyo-DCO-1.1-Signed-off-by: David Um <david.um@lge.com>
GF-3408: CI fixing

Enyo-DCO-1.1-Signed-off-by: David Um <david.um@lge.com>
Merge pull request #520 from DavidUM/ENYO-3408-davidum

ENYO-3408: Provide handlers for ScrollMath properties

Reviewed-By: Ben Combee (ben.combee@lge.com)