Merge pull request #269 from fsih/updateBitmapSkinJsdoc

Fix jsdoc

src/RenderWebGL.js

@@ -304,7 +304,7 @@ class RenderWebGL extends EventEmitter {
     /**
      * Update an existing bitmap skin, or create a bitmap skin if the previous skin was not bitmap.
      * @param {!int} skinId the ID for the skin to change.
-     * @param {!string} imgData - new bitmap to use.
+     * @param {!ImageData|HTMLImageElement|HTMLCanvasElement|HTMLVideoElement} imgData - new contents for this skin.
      * @param {!number} bitmapResolution - the resolution scale for a bitmap costume.
      * @param {?Array<number>} rotationCenter Optional: rotation center of the skin. If not supplied, the center of the
      * skin will be used