新增openUrl方法

display-server/src/main/webapp/res/js/mobile/mobile-client.js

		this.loadUrl = function(url, err) {
			WadeMobile.loadUrl(url, err);
		};
		/*新开一个activity,页面跳转,url为跳转目标*/
		this.openUrl = function(url, err) {
			WadeMobile.openUrl(url, err);
		};
		/*页面跳转,param为打开页面时调用接口的参数*/
		this.openPage = function(pageAction, param, err) {
			param = param ? param : "";