Add form warning and minor translation update for zh-TW
Merge pull request #4097 from xavier114fch/zh-TW

Add form warning and minor translation update for zh-TW
Fix annotation border issue (bug 957034)
Merge pull request #4080 from Snuffleupagus/bug-957034

Fix annotation border issue (bug 957034)
Fixes FitV scrolling
Merge pull request #4099 from yurydelendik/bug958050

Fixes FitV scrolling
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/xavier114fch/pdf.js