Merge pull request phaserjs#1954 from bixi/temp

Fix mismatched typescript member function signature of Phaser.Point.rotate.

Author: photonstorm

typescript/phaser.comments.d.ts

@@ -19660,7 +19660,7 @@ declare module Phaser {
         * @param distance An optional distance constraint between the Point and the anchor.
         * @return The modified point object.
         */
-        rotate(a: Phaser.Point, x: number, y: number, angle: number, asDegrees?: boolean, distance?: number): Phaser.Point;
+        rotate(x: number, y: number, angle: number, asDegrees?: boolean, distance?: number): Phaser.Point;
 
         /**
         * Sets the `x` and `y` values of this Point object to the given values.

typescript/phaser.d.ts

@@ -3616,7 +3616,7 @@ declare module Phaser {
         normalRightHand(): Phaser.Point;
         perp(): Phaser.Point;
         rperp(): Phaser.Point;
-        rotate(a: Phaser.Point, x: number, y: number, angle: number, asDegrees?: boolean, distance?: number): Phaser.Point;
+        rotate(x: number, y: number, angle: number, asDegrees?: boolean, distance?: number): Phaser.Point;
         set(x: number, y?: number): Phaser.Point;
         setMagnitude(magnitude: number): Phaser.Point;
         setTo(x: number, y?: number): Phaser.Point;