version: 460 date: 2017/11/30
1.Added a feature to use ASWD to scroll camera
2.Added a feature that angels will slowly turn back when tracing.
3.Fixed the bug that health point will be minus twice when you are scanned by two angels.
4.Polished the interface of talk bubbles and tips.
5.Fixed the bugs that will cause crash and improve game performance to make it stable.