some up-to-date changes (bump to 0.2.0)#13

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majioa wants to merge 8 commits intocodingfishman:masterfrom

majioa:toupstream

Commits on Oct 15, 2017

Fixed top/bottom window height detection
majioa
committed

Commits on Oct 21, 2017

Commits on Jan 9, 2020

Fix real window visiable area detection
majioa
committed

Commits on Mar 25, 2020

Commits on Mar 28, 2020

Some fixes
majioa
committed