- each pr version connects invalidated comments to it
- in version list we show number of comments made on each version
- show all outdated comments even for deleted files
- linkify outdated comments to first one
- added auto-collapse of commit range if they are more than 5
- styling changes, wide mode improvements
- made compare and commit range pages more consistent with other commit diff pages
- removed mergerly, closes#4665. Old diff2way is replaced by new diffs with
side-by-side mode.
- cleanup button behaviour on compare page. Added help text and
generally improved UX
- switched file-diffs to compare page with file filter. Part of #4000
- added collapse/expand commits buttons in compare views.
- invalidated comments now link to previous version to show code context
- removed all deprecated JS code left from new diffs
- improved invalidated comments display logic
- UI tweaks
* add hidden comments indicator in diff lines
* make no new line at end of file marker red
* fixes bug where show/hide comments was not changing message
refs #4311
* side/side + unified support
* redesign of diff changes/operations
* added button to see file before the change
* auto collapses large diffs
refs #4232
