XHaloFloatingWindow

　　XHaloFloatingWindow：实现APP窗口化分屏.

官方介绍

　　XHaloFloatingWindow是一款桌面漂浮空间，自定义后可以在桌面快速的开启应用。需要Xposed框架支持。

更新日志

　　Add new gravity chooser
　　Add base code for First Use Screen (not ready yet)
　　Change Main Preference to a sliding navigation
　　Change ActioNBAr to dark + Replace action bar icons with white ones
　　Made popup alpha and popup dim preference live update
　　Code Refactoring:
　　--> Optimized Movable Window hooks
　　--> Fix mistake in blacklist and whitelist
　　--> Revert "Simplify hook for the Testing Area."