ensure bindings have a way of being reset and rebuilt arbitrarily

Enyo-DCO-1.1-Signed-Off-By: Cole Davis (cole.davis@lge.com)
attempt to observe changes to the 'to' path even when oneWay is true for Binding; keep ObserverChains from being created for paths of the form '$.property' as this should be treated as a single property and not a path

Enyo-DCO-1.1-Signed-Off-By: Cole Davis (cole.davis@lge.com)
Merge pull request #753 from enyojs/BHV-9346-coledavis

Fix for: BHV-9346

Reviewed-by: Aaron Tam (aaron.tam@lge.com)