Resolve "Issue board milestone lists"

Closes #6469

See merge request gitlab-org/gitlab-ee!6615

Improve Bulk editing docs

See merge request gitlab-org/gitlab-ee!6824

Add Projects page under Admin > Geo Nodes to display detailed synchronization information

Closes #6851

See merge request gitlab-org/gitlab-ee!6452

Port of Rake task for checking orphaned object store uploads

See merge request gitlab-org/gitlab-ee!6819

Search for labels in project labels list page

See merge request gitlab-org/gitlab-ee!6820

Summed Issue Weights

See merge request gitlab-org/gitlab-ee!6790

Merge branch 'ee-5666-list_groups_with_developer_maintainer_access_on_project_creation' into 'master'

List groups with developer maintainer access on project creation

Closes #5666

See merge request gitlab-org/gitlab-ee!6678

EE port of ide-codesandbox-poc

See merge request gitlab-org/gitlab-ee!6821

Create a user instead of stubbing one

See merge request gitlab-org/gitlab-ee!6823

`#repository_updated!` receives `type` instead of `event

Rails5: fix Arel::UpdateManager in MigrateOldElasticsearchSettings migration

See merge request gitlab-org/gitlab-ee!6815

To workaround https://gitlab.com/gitlab-org/gitlab-ee/issues/7144

Rails5: fix slice in burndown fixture

See merge request gitlab-org/gitlab-ee!6813

Todos epic

Closes #5481

See merge request gitlab-org/gitlab-ee!6542

Fix bug related to size check of repositories and files

Closes #6459 and #6780

See merge request gitlab-org/gitlab-ee!6767