Add AnimationBreak event

An event that only emits when an animation is stopped before it fully finished.

framer/Animation.coffee

@@ -154,6 +154,7 @@ class exports.Animation extends BaseClass
 
 		# Add the callbacks
 		@on(Events.AnimationStart, @options.onStart) if _.isFunction(@options.onStart)
+		@on(Events.AnimationBreak, @options.onBreak) if _.isFunction(@options.onBreak)
 		@on(Events.AnimationStop, @options.onStop) if _.isFunction(@options.onStop)
 		@on(Events.AnimationEnd, @options.onEnd) if _.isFunction(@options.onEnd)
 
@@ -192,7 +193,7 @@ class exports.Animation extends BaseClass
 			@_delayTimer = null
 
 		@layer.context.removeAnimation(@)
-
+		@emit(Events.AnimationBreak) if emit
 		@emit(Events.AnimationStop) if emit
 		Framer.Loop.off("update", @_update)
 

framer/Events.coffee

@@ -36,6 +36,7 @@ Events.Click = Events.TouchEnd
 
 # Animation events
 Events.AnimationStart = "start"
+Events.AnimationBreak = "break"
 Events.AnimationStop = "stop"
 Events.AnimationEnd = "end"
 

test/tests/LayerAnimationTest.coffee

@@ -698,6 +698,16 @@ describe "LayerAnimation", ->
 							layer.x.should.eql 0
 							done()
 
+			it "should call break", (done) ->
+				layer = new Layer
+				layer.animate
+					x: 100
+					options:
+						time: 0.1
+						onBreak: ->
+							done()
+				layer.animateStop()
+
 			it "should call stop", (done) ->
 				layer = new Layer
 				layer.animate