Store diff with line note. It makes possible to see inline notes with proper diff even if MR diff changed

Show autocomplete list when editing notes.

Improve markup detection, fixes #4695

Add support for reStructured Text markup language

Bump version of gitlab-shell to 1.7.0

Fixed Fixed issue when project default branch selected from non-exists and UI does not allow to change it

Fix notifications to handle participants and mentions on commits too

Add 'repository' to path blacklist, fixes #4591

Better description based on a conversation in the contributor room.