Client implementation for InfoAttributes

See merge request gitlab-org/gitlab-ce!18261

Resolve "Illustration for the case where the job has finished and the log was erased"

Closes #45159

See merge request gitlab-org/gitlab-ce!18253

Clients can now request the attributes from `$GIT_DIR/info/attributes`
through Gitaly. The Gitaly migration is described in gitlab-org/gitaly#1082.

The parser algorithm was implemented in a way it could handle both file
contents or a File handle, and both were already tested.

Other than that, using the boy scout rule, I've removed a class,
InfoAttributes, as it was delegating everything to the parser and
therefor wasn't really needed in my opinion.

Resolve "Clean outdated flaky specs from the flaky specs report"

Closes #37721

See merge request gitlab-org/gitlab-ce!18196

Replace the `project/issues/milestones.feature` spinach test with an rspec analog

See merge request gitlab-org/gitlab-ce!18300

Replace the `project/commits/branches.feature` spinach test with an rspec analog

See merge request gitlab-org/gitlab-ce!18302

Resolve "When editing a comment in an issue, the preview mode is toggled in the main textarea"

Closes #44697

See merge request gitlab-org/gitlab-ce!18303

Branch with a commit detection defaults to Gitaly

See merge request gitlab-org/gitlab-ce!18304

Tag with a commit detection defaults to Gitaly

See merge request gitlab-org/gitlab-ce!18305

Fix file-specific variables collection item option

Closes gitlab-ee#5444

See merge request gitlab-org/gitlab-ce!18307

Fixed markdown preview in IDE not working for new files

See merge request gitlab-org/gitlab-ce!18287

[Rails5] Fix admin/application_settings_controller

See merge request gitlab-org/gitlab-ce!18275

By default this was an OPT_IN RPC, and now graduates to OPT_OUT as the
acceptance testing was successful in:
gitaly#1009

This follows the conventions of our [migration
process](https://gitlab.com/gitlab-org/gitaly/blob/master/doc/MIGRATION_PROCESS.md)

By default this was an OPT_IN RPC, and now graduates to OPT_OUT as the
acceptance testing was successful in:
https://gitlab.com/gitlab-org/gitaly/issues/1008

This follows the conventions of our [migration
process](https://gitlab.com/gitlab-org/gitaly/blob/master/doc/MIGRATION_PROCESS.md)

[CE Backport] Fix email handler spec for EE

See merge request gitlab-org/gitlab-ce!18298

The `RAILS5=1 rspec spec/controllers/admin/application_settings_controller_spec.rb`
command throws the error:

Failures:

  1) Admin::ApplicationSettingsController PUT #update falls back to defaults when settings are omitted
      Failure/Error: import_sources = params[:application_setting][:import_sources]

      NoMethodError:
        undefined method `[]' for nil:NilClass
      # ./app/controllers/admin/application_settings_controller.rb:62:in `application_setting_params'

This commit fixes it.

Fix enviroments seeding on certain branch names

Closes #45051

See merge request gitlab-org/gitlab-ce!18263

Update vendored .gitlab-ci.yml for Auto-Devops

See merge request gitlab-org/gitlab-ce!18289

Use axios in the stage component

See merge request gitlab-org/gitlab-ce!18286

Make sure hooks run when seeding admin user

Closes gitlab-development-kit#335

See merge request gitlab-org/gitlab-ce!18284

[Rails5] Fix running spinach tests

See merge request gitlab-org/gitlab-ce!18281

Reduce complexity of issuable finder query.

Closes #37125

See merge request gitlab-org/gitlab-ce!18219

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

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

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

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

Update Security Products jobs definitions

See merge request gitlab-org/gitlab-ce!18265

1. Add support for `RAILS5=1|true` for the `bin/spinach` command.
2. Synchronize used spinach versions both for rails4 and rails5.

For rails5 it was accidently used spinach 0.10.1 instead of 0.8.10.
That brought some problems on running spinach tests.

Example of failure message:

NoMethodError: undefined method `line' for #<Spinach::Scenario:0x000000000c86ba80>
Did you mean?  lines
  /builds/gitlab-org/gitlab-ce/features/support/env.rb:52:in `before_scenario_run'