BHV-11229 Assign activator with decorator
Modify previous one to more general usage.

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
BHV-11229 Modify sample for disabled button.

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
Merge pull request #1541 from enyojs/BHV-11229-davidum

BHV-11229 Assign activator with decorator, looks good - behavior is as expected.