Remove TabBar folder and move Item.js to TarBarItem.js instead
jshint cleanups, change indentation to match rest of project

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)
Add UTF-8 meta tag to TabBar sample to make French text work correctly from file URL

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)