* upstream/master:
  Fix missing tooltip and ARIA labels for accessibility
  Add info on using self-signed certs with Registry
  Introduce optimistic locking support via optional parameter last_commit_id on File Update API
  Move issuable bulk edit form into a new sidebar.
  Add PowerShell to CI variable docs
  Responsive environment tables
  Accept a username for User-level Events API
  Introduce an Events API
  Update GitLab Pages to v0.4.3
  Allow numeric pages domain
  Remove references to old settings location
  Resolve "API: Environment info missed"
  Fix Projects API spec
  Update explanation of job-level variable override to fit example
  Per discussion
  Make sketch dynamic and link back to production architecture

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11910#note_31632911

Fix missing tooltip and ARIA labels for accessibility

Closes #31656

See merge request !11907

Move issuable bulk edit form into a sidebar

Closes #28340

See merge request !11351

Update GitLab Pages to v0.4.3

See merge request !11930

Add info on using self-signed certs with Registry

Closes #18239

See merge request !11938

Add PowerShell to CI variable docs

See merge request !11935

Introduce optimistic locking support via optional parameter last_commit_id on File Update API

See merge request !11694

Allow numeric pages domain

Closes #29271

See merge request !11927

Update explanation of job-level variable override to fit example

See merge request !11923

Introduce an Events API

Closes #14707

See merge request !11755

Responsive environment tables

See merge request !11836

* Meld the following disparate endpoints:
 * `/projects/:id/events`
 * `/events`
 * `/users/:id/events`
+ Add result filtering to the above endpoints:
 * action
 * target_type
 * before and after dates

Previously, `PagesDomain` would not allow a domain such as
123.example.com. With this change, this is now allowed, because
it is a perfectly valid domain.

Fix Projects API spec

Closes #33340

See merge request !11928

Make sketch dynamic and link back to production architecture

See merge request !11617

Remove references to old settings location

Closes #33041

See merge request !11932

Resolve "API: Environment info missed"

Closes #30156

See merge request !11900

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11910#note_31594492
https://gitlab.com/gitlab-org/gitlab-ce/issues/30634#note_31601001

Signed-off-by: Rémy Coutable <remy@rymai.me>

* upstream/master: (56 commits)
  Resolve "When changing project visibility setting, change other dropdowns automatically"
  change headings to improve SEO
  backports changed import logic from pull mirroring feature into CE
  Fix header component spec
  Add a Rake task to aid in rotating otp_key_base
  Remove unnecessary variable
  Add changelog entry
  Allow users to be hard-deleted from the admin user show page
  Allow users to be hard-removed from the admin users list page
  Support hard deletion in Admin::UsersController#destroy
  Add changelog entry
  Extract and memoize `user_access`
  Remove GitAccessStatus (no longer needed)
  Refactor construction of response
  Refactor to remove a special case
  Fix would-be regression
  Clarify error messages
  Refactor to let GitAccess errors bubble up
  Refactor to let `GitAccess` check protocol config
  Specify new Git-LFS-over-HTTP behavior
  ...

Fix typo in helm chart installation doc (#32236)

Closes #32236

See merge request !11891

Backport CI codeclimate example doc change from EE

See merge request !11903

Add note on customizing body size to support Registry

See merge request !11904

Corrected spelling mistake in permissions.md "it total" -> "in total".

See merge request !11908

Issues documentation: improve SEO

See merge request !11919

Merge branch '24032-when-changing-project-visibility-setting-change-other-dropdowns-automatically' into 'master'

Resolve "When changing project visibility setting, change other dropdowns automatically"

Closes #24032

See merge request !11831