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Added
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* cli: output directory option.
* sphinx document.
* test packaging on CI.
* Handler for metalink information and intelligent mirror selection.
Changed
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* Change project directory structure.
* cli command name changed from 'aqtinst' to 'aqt' and now you can run 'aqt install'
* Introduce Cli class
* Massive regression test on azure pipelines(20)
* blacklist against http://mirrors.tuna.tsinghua.edu.cn and http://mirrors.geekpie.club/
from mirror site.
* Run 7zip command with '-o{directory}' option.
Fixed
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* Fix File Not Found Error when making qt.conf against win64_mingw73 and win32_mingw73