ENYO-2271, ENYO-2270: Add an enyo.design file. Fixed Scroller and Repeater settings for Ares

* Merge branch 'master' of github.com:enyojs/enyo into ENYO-2271
* ENYO-2270: Added enyo.Repeater in enyo.design file
* ENYO-2271: Add an enyo.design file. * In Ares designer, Scroller should have fit:true by default

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>