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* change property serial back
* add double\_click, set click\_pre and post delay to 0
* fix bugs reported in qq
* remove useless code
* add missing swipe\_ext and address(teditor)
* finally version
* add missing toast
* add more method
* rewrite uiautomator2, too complex
* add timeout(60s) in init.py to prevent hang on apk install page
* update adbutils which buildin adb.exe for windows
* rewrite part of init code
* upgrade adbutils: support download adb.exe when missing on windows
* add click\_exists to xpath