Merge pull request phaserjs#1133 from rhmoller/dev

Emitter.setScale() has separate arguments for x and y and easing parameter should be a function type

Author: photonstorm

build/phaser.d.ts

@@ -2989,7 +2989,7 @@ declare module Phaser {
                 reset(x: number, y: number, health?: number): Phaser.Particles;
                 setAlpha(min?: number, max?: number, rate?: number, ease?: number, yoyo?: boolean): void;
                 setRotation(min?: number, max?: number): void;
-                setScale(min?: number, max?: number, rate?: number, ease?: number, yoyo?: boolean): void;
+                setScale(minX?: number, maxX?: number, minY?: number, maxY?: number, rate?: number, ease?: (k:number) => number, yoyo?: boolean): void;
                 setSize(width: number, height: number): void;
                 setXSpeed(min: number, max: number): void;
                 setYSpeed(min: number, max: number): void;