Filter out sensitive fields from the project services API
See merge request gitlab/gitlabhq!2281
(cherry picked from commit 476f2576444632f2a9a61b4cead9c1077f2c81d7)
2bcbbda0 Filter out sensitive fields from the project services API
Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/27070
Deprecate "chat commands" in favor of "slash commands"
We looked for things like:
- `slash commmand`
- `slash_command`
- `slash-command`
- `SlashCommand`
This commit was about 6 commits before squashing, with the main goal to
make all tests green. Now, after pushing this commit we'll see what the
CI has to say about that.