ENYO-348: Fixed list re-rendering issue, major cleanup and code reorg and decoupling, locale is never set to 'undefined'.

Enyo-DCO-1.1-Signed-off-by: Blake Stephens <blake.stephens@lge.com>
Merge pull request #1715 from enyojs/ENYO-348-blakestephens

ENYO-348: Fixed list re-rendering issue, cleanup and code reorg

Reviewed-By: Art Dahm (art.dahm@lge.com)
Integrated-By: Aaron Tam (aaron.tam@lge.com)