Implement ability to augment uiActions in subclass
Added test for augmenting uiActions in subclass.
Added extensible moreUIActions to ElementView subclass and updated test suite.
Assure late event binding in moreUIActions.
Corrected the augmented uiActions object and refactor controller delegate for loop.
Modified and added test to ElementView subclass suite.

Modified test to check overwritten uiActions in subclass. Added new
test to check subclass of dynamically changed superclass uiActions.
Added doc to ElementView subclass for moreUIActions
Merge pull request #70 from hieuhuynh/master

Implement ability to augment uiActions in subclass