Fix up accessibility. Remove stripes for declined events

b/5288841 Remove stripes for declined events

b/5270879 Accessibility: Interrupt the first reading of the event
  from day/week view when the user taps and open an event.

b/5288922 Accessibility: Read event times when viewing an event

Also other improved on the event and time readout for accessibility

Change-Id: Ic6b317fbe9ef3a00ffd854094d904945dbec3159