Bug 831628 - 0001. Add event object. r=yoshi. sr=sicking
Bug 831628 - 0002. Handle event. r=yoshi
Bug 831628 - 0003. Mark event as supported. r=yoshi
Bug 831628 - 0004. Change worker name. r=yoshi
Bug 831628 - 0005. Test case for Event Download Command : Idle Screen Available. r=yoshi