Fix for keyboard navigation - only commit value on Enter or close.
Fix for keyboard navigation - only commit value on Enter or close.

No longer silently changes the underlying value as the user keyboard navigates up / down through the dropdown - updates the label and later applies the value (and notifies via event) when the interaction is completed via Enter key or dropdown is closed.

jasongardnerlv/radium-combo,johnyanarella/radium-combo