Usability feature request: disable hour fields is "all day" is selected. This could be easily done in JQuery, something in line of:
(idea code, not final, not tested)
Steps to reproduce:
1. open http://demo.wp-events-plugin.com/submit-your-event/
2. select "all day"
result: start and end hour fields are available
expected: these fields should be disabled, since the event is all day and allowing to select meaningless hours is bad usability