Previously we scheduled a worker to just some this but we were running
into performance issues when the build table was getting too large. So
now we've updated the code such that this column is updated immediately
and incremented/decremented by the correct amount whenever artifacts are
created or deleted.

We've also added the performance optimization that we do not update this
statistic if a project is deleted because it could result in many
updates for a project with many builds.

Fix finding wiki file when Gitaly is enabled

Closes gitaly#1126

See merge request gitlab-org/gitlab-ce!18317

[CE Backport] Propagate broadcast messages to secondaries

See merge request gitlab-org/gitlab-ce!18324

Limit dropdown toggle width for protected branches / tags

See merge request gitlab-org/gitlab-ce!18212

Document example for sprintf without escaping

See merge request gitlab-org/gitlab-ce!16712

Add i18n and update specs for UnresolvedDiscussions vue component

See merge request gitlab-org/gitlab-ce!17866

Vertical misalignment of login box header

Closes #41748

See merge request gitlab-org/gitlab-ce!16275

Add possibility to filter Karma spec files by path

Closes #40899

See merge request gitlab-org/gitlab-ce!16102

Move TimeTrackingEstimateOnlyPane vue component

See merge request gitlab-org/gitlab-ce!18318

[Rails5] Update Event#subclass_from_attributes method

See merge request gitlab-org/gitlab-ce!18312

Link Monitor docs to the front page

Closes #45006

See merge request gitlab-org/gitlab-ce!18314

Fixes gitaly#1126

Resolve "tree/master shows incorrect CI build status"

Closes #44541

See merge request gitlab-org/gitlab-ce!17995

Replace vue resource with axios for pipeline details page

See merge request gitlab-org/gitlab-ce!18285

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Resolve "Clean outdated flaky specs from the flaky specs report"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

In Rails 5.0 the `ActiveRecord::Inheritance::subclass_from_attributes`
method was updated.
Now it calls the `find_sti_class` method [1] which is overriden in the `Event`
model and returns needed class (`Event` vs `PushEvent`).

[1]: https://github.com/rails/rails/blob/5-0-stable/activerecord/lib/active_record/inheritance.rb#L209

This commit fixes the errors like
```
143) User#contributed_projects doesn't include IDs for unrelated projects
      Failure/Error: action = attrs.with_indifferent_access[inheritance_column].to_i

      NoMethodError:
        undefined method `with_indifferent_access' for nil:NilClass
      # ./app/models/event.rb:118:in `subclass_from_attributes'
```
which are raised on the `RAILS5=1 rspec ...` command.

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)