Rails5 fix NoMethodError: undefined method 'message' for nil:NilClass

Closes #6605

See merge request gitlab-org/gitlab-ee!6507

[EE] Move Danger to test stage

Closes gitlab-ce#49185

See merge request gitlab-org/gitlab-ee!6531

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

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

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

CE upstream - 2018-07-16 15:23 UTC

See merge request gitlab-org/gitlab-ee!6524

Merge branch '6888-geo-project-imports-may-not-be-synced-if-repository-takes-some-time-to-fetch' into 'master'

Resync project repositories on secondaries nodes when import finishes

See merge request gitlab-org/gitlab-ee!6529

Project imports may not be synced if repository takes some time to
fetch. We also need to invalidate the checksum, otherwise we can
have stale checksums on the primary node.

Fix undefined constant Gitlab::Git::HooksService::PreReceiveError

See merge request gitlab-org/gitlab-ee!6514

# Conflicts:
#	locale/gitlab.pot

[ci skip]

Enable frozen string in apps/services/*.rb

See merge request gitlab-org/gitlab-ce!20401

Part of gitlab-org/gitlab-ce#49263

Update issue closing pattern

Closes #49166

See merge request gitlab-org/gitlab-ce!20554

CE upstream - 2018-07-16 12:22 UTC

See merge request gitlab-org/gitlab-ee!6522

Update Git version to 2.18.0

See merge request gitlab-org/gitlab-ce!20489

Fix invalid link to GitLab.com architecture.md

See merge request gitlab-org/gitlab-ce!20645

Add a 10 ms bucket for SQL timings

See merge request gitlab-org/gitlab-ce!20527

i18n: externalize strings from 'app/views/import'

See merge request gitlab-org/gitlab-ce!19732

Partially addresses #47424.

# Conflicts:
#	app/serializers/environment_entity.rb
#	locale/gitlab.pot
#	spec/javascripts/environments/mock_data.js

[ci skip]

Signed-off-by: Tao Wang <twang2218@gmail.com>

Update 10.6-to-10.7.md

See merge request gitlab-org/gitlab-ce!20610

Remove Repository#lookup and unreachable rugged code

See merge request gitlab-org/gitlab-ce!20553

Remove Repository#lookup and unreachable rugged code (EE version)

See merge request gitlab-org/gitlab-ee!6490

CE upstream - 2018-07-16 09:22 UTC

Closes charts/gitlab#586

See merge request gitlab-org/gitlab-ee!6519

Merge branch '48745-project-exports-fail-when-uploads-have-been-migrated-to-object-storage' into 'master'

Resolve "Project exports fail when uploads have been migrated to object storage"

Closes #48745

See merge request gitlab-org/gitlab-ce!20484

Make it more explicit what environment stop actions are

Closes #48672

See merge request gitlab-org/gitlab-ce!20587