Fx.Transition optimalization - If you create a new Fx.Transition, wit…

…h params, and pass it directly into Fx, the params are ignored, so you explicetely need to use .easeIn, this commit uses the easeIn function by default and respects the passed params

Source/Fx/Fx.Transitions.js

@@ -34,15 +34,16 @@ Fx.implement({
 
 Fx.Transition = function(transition, params){
 	params = Array.from(params);
-	return Object.append(transition, {
-		easeIn: function(pos){
-			return transition(pos, params);
-		},
+	var easeIn = function(pos){
+		return transition(pos, params);
+	};
+	return Object.append(easeIn, {
+		easeIn: easeIn,
 		easeOut: function(pos){
 			return 1 - transition(1 - pos, params);
 		},
 		easeInOut: function(pos){
-			return (pos <= 0.5) ? transition(2 * pos, params) / 2 : (2 - transition(2 * (1 - pos), params)) / 2;
+			return (pos <= 0.5 ? transition(2 * pos, params) : (2 - transition(2 * (1 - pos), params))) / 2;
 		}
 	});
 };
@@ -107,6 +108,6 @@ Fx.Transitions.extend({
 
 ['Quad', 'Cubic', 'Quart', 'Quint'].each(function(transition, i){
 	Fx.Transitions[transition] = new Fx.Transition(function(p){
-		return Math.pow(p, [i + 2]);
+		return Math.pow(p, i + 2);
 	});
 });