version 2.2.0 changes

- removed context menu items
- moved import/export buttons to settings panel
- fixed bug involving non-unique group ids that affected editing groups

- fixed icon in autosave panel

- added column for number of tabs in popup

- fixed bug with pinned tabs not opening when switching groups

- tabs now open in a discarded state
- fixed bug with saving tabs in reader view

- fixed bug with importing legacy tgs files

- added option to show current group name in window title

version 2.0.3 changes

- added number of tabs in current group

Changes in group editor:
- added "Move to" button
- allowed blank group name
- replaced select all/none buttons with checkbox
- fixed bug where checked items aren't highlighted

version 2.0.2 changes

- fixed current group name not restoring on browser restart
- can now open about:newtab

version 2.0.0 changes

- in group editor, double click to change focused/pinned status
- added current group name in popup
- added navigation with keyboard arrows
- added option to sort groups alphabetically
- added option to use current group name when saving a new group
- added tooltips in group editor
- fixed bug causing groups to not appear in popup due to undefined tab titles
- fixed current group name not being saved when switching groups
- fixed autosave clear button not disabling
- fixed autosave alarm not resetting after changing interval
- fixed switching to empty group
- increased length of tab titles in tooltip, corrected for CJK full width characters
- when switching, first url is opened in active tab, not first tab
- close popup on clicking Settings or Edit
- allowed saving empty group name or tab title
- updated icons
- style changes in group editor, settings