Port of font-weight-adjusted to EE !12896

See merge request !2749

Support Elasticsearch v5.1 - v5.5

See merge request !2751

Display 'Check namespace plan' checkbox in admin area on GitLab.com, staging, or in development

See merge request !2750

Search for issues with multiple assignees

See merge request !1889

Support simple string LDAP attribute specifications, and search for name rather…

See merge request !2746

Fix `Geo::ProjectRegistry.failed` scope to count projects where wiki sync failed.

See merge request !2747

Support simple string LDAP attribute specifications, and search for name rather than username attributes

# Conflicts:
#	lib/gitlab/ldap/adapter.rb
#	spec/lib/gitlab/ldap/adapter_spec.rb

Add docs for multiple assignees AND filtering

See merge request !2745

CE upstream: Wednesday

Closes gitaly#463, #3194, gitlab-ce#36810, gitlab-ce#36685, gitlab-ce#36722, gitlab-ce#36519, and gitlab-ce#36661

See merge request !2741

[ci skip]

[ci skip]

[ee] Incorporate DiffService.CommitPatch Gitaly RPC

See merge request !2729

Add language mapping to crowdin.yml

See merge request !2740

* upstream/master: (49 commits)
  Implement new system note icons
  Remove tooltip from filtered search user
  Refactor `Admin::LogsController#show`
  Fix a potential timeout in `Gitlab::Logger.read_latest`
  Incorporate DiffService.CommitPatch Gitaly RPC
  Apply feedback
  Fix display of push events for removed refs
  Fix spacing with code block
  Fixes group policy specs on MySQL.
  Stub `ForkedStorageCheck.storage_available?` by default in all specs
  Add `:nested_groups` metadata to two subgroup-related specs
  Fix inability to test some project integrations
  img/merge_request_diff_file_navigation.png
  Merge request diff file navigation
  Raise GC Lease Timeout to 24h
  Use EachBatch concern to loop over batches
  Migration to remove pending delete projects with non-existing namespace
  Update VERSION to 9.6.0-pre
  Update CHANGELOG.md for 9.5.0
  Update form to properly set the path
  ...

# Conflicts:
#   Gemfile
#   Gemfile.lock

Incorporate DiffService.CommitPatch Gitaly RPC

Closes gitaly#463

See merge request !13441

Remove tooltip from filtered search user

Closes #36696

See merge request !13752

And add the project_identifier & api key to be able to work with Crowdin-CLI

Fix displaying events of removed events and events without commit messages

Closes #36685 and #36722

See merge request !13721

Add migration to remove pending delete projects with non-existing namespace

Closes #36541

See merge request !13598

Fix a potential timeout in `Gitlab::Logger.read_latest`

See merge request !13751

Stub `ForkedStorageCheck.storage_available?` by default in all specs

See merge request !13726

Fix inability to test some project integrations

Closes gitlab-ee#3194

See merge request !13729

Disable webpack.optimize because it's breaking karma in EE

See merge request !13720

Implement new system note icons

Closes #33503

See merge request !13673