issue #10:Memory above 1000;Improvement:List the application with alphabet order
Update VERSION
Fixed: #11 delete abnormal data
Added: 优化浮窗界面
Added: #13 保留应用的选中状态
Add: app starting time
Fixed: reivew comments
Merge pull request #14 from NetEase/feature/start_time

Merge Feature/start_time in master
issue#11 过滤异常的数据；issue#13 保留应用的选中状态，优化界面
Added: #12 add "stop test" button on floating window
Fixed: start time bug & AUTHORS\VERSION
Misc: show icon
Added: 优化启动时间，优化界面
Fixed: #15 usage rate of CPU is negative