fnCreateInterceptorDescriptor = function(descriptor) {
					var newDescriptor = {
						get: descriptor.get,
						set: function(val) {
							if (fnIsACBUrl(val)) {
								val = fnConvertUrl(val);
							}
							descriptor.set.call(this, val);
						},
						enumerable: descriptor.enumerable,
						configurable: descriptor.configurable
					};
					newDescriptor.set._sapUiCoreACB = true;
					return newDescriptor;
				}
Initializes the AppCacheBuster. Hooks into the relevant functions
in the Core to intercept the code which are dealing with URLs and
converts those URLs into cachebuster URLs.

The intercepted functions are:
<ul>
<li><code>XMLHttpRequest.prototype.open</code></li>
<li><code>HTMLScriptElement.prototype.src</code></li>
<li><code>HTMLLinkElement.prototype.href</code></li>
<li><code>sap.ui.base.ManagedObject.prototype.validateProperty</code></li>
<li><code>IconPool._convertUrl</code></li>
</ul>

@private