BHV-11576 Abstract out selection mechanism from modelsRemoved()
To prevent redundant refresh() during removing models, we separate selection mechanism which dataList needed.

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
BHV-11576 Fix comments

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
BHV-11576 Modify method name and fix comments

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
Merge branch 'BHV-11576-davidum' of https://github.com/enyojs/enyo into BHV-11576-davidum
Merge pull request #832 from enyojs/BHV-11576-davidum

Bhv 11576 Prevent unnecessary refresh() in DataRepeater.js

Reviewed-By: Cole Davis (cole.davis@lge.com)