Bug 1069214 - added accessibility improvements for day/week view.

how do I trigger this? was not able to do it with the screen reader on the device. the hours are selectable but I wasn't able to double tap to create an event.

another thing is that you can browse between the hours but it doesn't list if the hours contain events.. I think we should skip the hours if it doesn't contain events (maybe just make the swipe jump between events and say "no events" if there are no events on that day??)