ENYO-1597: Small tweak to JSHint config so that JSON cannot be reassigned.
ENYO-1597: Small tweak to JSHint config so that JSON cannot be reassigned.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>

PKRoma/enyo,enyojs/enyo,enyojs/enyo,PKRoma/enyo