- 添加startOf,endOf方法
==================
- 修改readMe文档
==================
- 修改传递参数可直接初始化date的一些参数
- 修改初始化错误日期后的处理
==================
- fixed bug #1 endOf: wrong result for moment.MONTH and 2016-07-31
==================
- fixed bug : wrong result for moment.MONDAY with momont.Week handle
==================
- fixed bug : wrong result for function add with momont.MONTH
==================
- fixed bug : Throw error when parse failed.
==================
- fixed bug : manba() return new object not old one.
==================
- fixed bug : remove seconds init.
==================