Bug 998246 part 1 - Add pref for Web Animations API; r=dbaron
Bug 998246 part 2 - Add AnimationTimeline interface; r=bz, r=glandium
Bug 998246 part 2.5 - Add AnimationTimeline to list of interfaces; r=bz
Bug 998246 part 3 - Add timeline member to Document interface; r=bz
Bug 998246 part 4 - Add currentTime member to AnimationTimeline; r=bz
Bug 998246 part 5 - Add tests for AnimationTimeline; r=dholbert