v7.0-beta.180

Beta pre-release of upcoming v7.1:

Fixed bug where background window would steal focus when a tab suspended (#865)
Prevent donated status from being overwritten via sync (#802)
Bug fix for unintended session restoring (#781)
Improved appearance of right-click context menu (#808)
Fixed tainted canvas bug with screen capturing (#821)
Improved external api (#276)
Fixed cross origin security errors when obtaining favicons (#827)
Added 'tab claiming' feature for when running multiple versions of TGS (#748)
Fixed favicon domain-level caching issue (#829)
Fixed bug that caused suspended tabs to reload immediately (#846)
Better handling of suspending loading tabs (#847)
Improved Russian translations (#858, #848, #868)
Fixed scroll position issues (#864)
Improved rendering of hotkeys (#862)
Improved strictness of extension content security policy (#870)
Improved chinese translations (#872, #880)