Migrate issuable states to integer patch 1 of 2

Closes #51789

See merge request gitlab-org/gitlab-ce!25107

Don't sanitize project names on project members page

Closes #58751

See merge request gitlab-org/gitlab-ce!25946

EE-Port: Don't sanitize project names on project members page

See merge request gitlab-org/gitlab-ee!9944

Bump Kubectl and Helm in Auto-DevOps.gitlab-ci.yml

See merge request gitlab-org/gitlab-ce!26534

Tweak coverage parsing examples

See merge request gitlab-org/gitlab-ce!26732

Use POROs for security report vulnerabilities

See merge request gitlab-org/gitlab-ee!10417

Generate POROS instead of hashes when parsing security reports

Adds `managed` boolean column to Clusters table

Closes #56557

See merge request gitlab-org/gitlab-ce!26675

Adds boolean field 'managed' to clusters table. This new column will be
used to distinguish those clusters that are automatically managed by
gitlab.

Needed for https://gitlab.com/gitlab-org/gitlab-ce/issues/56557

Fix group transfer selection possibilities

Closes #52295

See merge request gitlab-org/gitlab-ce!26123

Document that local tiller is used for Auto DevOps

Closes #58879

See merge request gitlab-org/gitlab-ce!26688

Also note that apps will be released into the Kubernetes namespace for
the environment, and that GitLab < 11.4 used a dedicated Tiller

Docs first iteration: getting started subscriptions

Closes gitlab-ce#56876, gitlab-ce#56875, and gitlab-com/support/support-team-meta#1323

See merge request gitlab-org/gitlab-ee!9938

Fix attempting to drop views in PostgreSQL

See merge request gitlab-org/gitlab-ce!26836

Repository indexing gaps handling

Closes #10712

See merge request gitlab-org/gitlab-ee!10273

Mention that deploy tokens and user/passwd don't work for Maven

See merge request gitlab-org/gitlab-ee!10475

Docs: Fix anchor to deprecated variables doc

See merge request gitlab-org/gitlab-ce!26788

Refactor and restructure environments page

See merge request gitlab-org/gitlab-ce!26400

Port from CE: Refactor and restructure environments page

See merge request gitlab-org/gitlab-ee!10335

- Groups content into relevant sections.
- Content edited.

Refactor and fix pipeline schedules

See merge request gitlab-org/gitlab-ce!26756

Allow streaming io objects into Gitaly

See merge request gitlab-org/gitlab-ce!26738