Keyboard navigation in select editors now also triggers change events.

Hi all,

The company I work for uses backbone-forms within a single page app and we came across the issue that navigating across values in a Select field, change events are not fired.

I fixed this issue by duplicating the logic from the Text field and we would like to post it back here so that it will some day be part of an official release.

Please let me know if you want me to make any changes for this to be merged.

Thanks!
Alex.