[README] New download URL
osx icon badge support - setBadgeLabel
Merge pull request #1709 from falsecz/badge

osx icon badge support - setBadgeLabel
Add self to AUTHORS
Fix build error on Linux.
Merge pull request #1716 from falsecz/author

Add self to AUTHORS
Merge pull request #1722 from zhchbin/fix_gtk_build

Fix build error on Linux.