Remove unused CSS (similar to BS4's .align-items-center)

See merge request gitlab-org/gitlab-ce!26134

Use Bootstrap Flex utility to remove .d-flex-center

See merge request gitlab-org/gitlab-ee!10146

Removes EE differences for stage_column_component_spec

Closes gitlab-ee#6622

See merge request gitlab-org/gitlab-ce!26219

e2e test for creating a project from instance template

Closes #9040

See merge request gitlab-org/gitlab-ee!9116

Fix simple typo in Documentation

See merge request gitlab-org/gitlab-ce!26243

`untracked: true` does not adhere to .gitignore, see gitlab-org/gitlab-runner#3378

See merge request gitlab-org/gitlab-ce!24122

Document GitLab.com SAML account unlinking and add images

Closes #10288

See merge request gitlab-org/gitlab-ee!9969

Also combines the group level project template into the same file as
instance level project template.

Add logging info to Go guide

Closes #57298

See merge request gitlab-org/gitlab-ce!25714

Update screenshot of the security dashboard

Closes #10411

See merge request gitlab-org/gitlab-ee!10149

closes https://gitlab.com/gitlab-org/gitlab-ce/issues/57298

On GitLab University readme, add link to Education solutions page

See merge request gitlab-org/gitlab-ce!26230

QA: Reduce flakiness of git-lfs related tests

See merge request gitlab-org/gitlab-ee!10026

Document better the package-and-qa job

See merge request gitlab-org/gitlab-ce!25978

Documentation : Update index.md

See merge request gitlab-org/gitlab-ce!26149

Docs: Fix note syntax

See merge request gitlab-org/gitlab-ce!26163