Refs #6893. Just fixing README statement on the purpose of xhrMultiPart.js. dojox.io.proxy.xip is the xdomain fragment id XHR proxy.
Refs #6893. Just fixing README statement on the purpose of xhrMultiPart.js. dojox.io.proxy.xip is the xdomain fragment id XHR proxy.

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@14230 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful