Correctly destroy menu item in places context menu
(related to #2)
Add context menu item to open multiple places items in private tabs
(draft for #99)
Simplify handleCommand()
(related to #99)
Disable "Open All in Private Tabs", if built-in "Open All in Tabs" is disabled
(#99)
Make current tab private, if code for "Open All in Tabs" reuses it
(#99)