CE upstream - Saturday

Files to resolve:

• @MadLittleMods Please resolve (UU) package.json
• @rymai Please resolve (UU) scripts/trigger-build-omnibus
• @rymai Please resolve (UU) yarn.lock

Try to resolve one file per commit, and then push (no force-push!) to the ce-to-ee-2017-11-25 branch.

Thanks in advance! ❤

Note: This merge request was created by an automated script. Please report any issue at https://gitlab.com/gitlab-org/release-tools/issues!