AUI-1783 - Add enter key input event listener to the Datepicker module
AUI-1783 - Source formatting
AUI-1783 Prevent multiple listeners
AUI-1783 Add test
AUI-1783 - Source formatting
AUI-1783 Detach listener from old node first
AUI-1783 Add event doc block
AUI-1783 Move to aui-datepicker-delegate.js
AUI-1783 Source formatting