takeScreenShot in JME3

I know this is an old issue, but in my case, I found out that if the image had an impair height, that line appeared.

So I have done the following modifications to make it work for me.

	    public void reshape(ViewPort vp, int w, int h) {
	        outBuf = BufferUtils.createByteBuffer(w*h*4);
	        if (h % 2 == 1) {
	        	h = h - 1;
	        screenShot = new BufferedImage(w, h, BufferedImage.TYPE_4BYTE_ABGR);