function clearByUrl(url) {
		var i, len,
			handler,
			results = [],
			match=url instanceof RegExp ?
				function(testUrl) { return url.test(testUrl); } :
				function(testUrl) { return url === testUrl; };
		for (i=0, len=mockHandlers.length; i<len; i++) {
			handler = mockHandlers[i];
			if (!match(handler.url)) {
				results.push(handler);
			} else {
				logger.log( handler, [
					'Clearing mock: ' + (handler && handler.url),
					handler
				] );
			}
		}
		return results;
	}
Clears handlers that mock given url
@param url
@returns {Array}