App update: fix error not working
1. set Using time and Sleep time
2. This will start time counting with Let's start button
3. Once with timeout of Using time, your cell phone will get angry with vibrating until turning off it's screen
( in the situation angry vibrating, if you turn screen on for the time that you set 'Sleep time', angry vibrating will continue.
4. This don't show the time counting status. please don't put your mind in time counting.