Added JPEG-XR and JPEG-2000 Support

Hello

This pull request contains JPEG-XR and JPEG-2000 suppport (for IE9+ and Safari, respectively).  I have also created a new example page, demo-05.html, to support these file formats, as well as creating supporting images (large.jp2 and large.jxr).  The file large jp2 was created with ImageMagick with the following parameters:

convert &lt;image-file&gt; -define jp2:quality=34 large.jp2

The file large.jxr was created using nconvert with the following parameters:

nconvert -out jxr -q 80 &lt;image-file&gt;

Information on these tools are at:
ImageMagick: http://www.imagemagick.org/
NConvert: http://www.xnview.com/en/nconvert/