- This fixes an issue if a file is added that has very large number of small lines.
In this case the time to detect if the diff should be limited was very very long and CPU intensive.
- 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- show all outdated comments even for deleted files
- linkify outdated comments to first one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
* side/side + unified support
* redesign of diff changes/operations
* added button to see file before the change
* auto collapses large diffs
refs #4232
