critical fix for DataList and others to be able to to handle the "add" or "remove" records events if the '0' index exists

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
Merge pull request #469 from enyojs/data-list-critical-fix

critical fix

Reviewed-By: Ben Combee (ben.combee@lge.com)