1.0.0-alpha0 exceptions during synchronous hook handlers don't reject the trans promise

[christopherthielen]

http://plnkr.co/edit/xGypfx132eNeBapLtSDQ -- nagivate to home.foo; it should throw an error, but then stay "no transition in progress..."

Fix goes here, i think: https://github.com/angular-ui/ui-router/blob/1.0.0alpha0/src/transition/transition.ts#L346