Geo uses it's own subclass of BasePgHelper
* Default to PgHelper, but allow user to provide a helper
* Remove protected status from service_name and service_cmd methods

Rename Trigger schedule to Pipeline Schedule

See merge request !1546

The feature was listed as experimental on the docs page describing this
feature, so we're free to change the key to match the worker name.

The frequency was improved too, so the peaks would be lower, and
accuracy would be better. The default cron pattern was choosen so it
would spread the load between other scheduled jobs nicely.

Adding `bin/compile` to gitlab-shell build steps

Closes #2304

See merge request !1554

Improve `gitlab-ctl replicate-geo-database` error messages

Closes gitlab-ee#2176

See merge request !1557

Users forgetting to run this command as root would not see any
helpful warning messages. Now it will say:

```
* Stopping PostgreSQL and all GitLab services
warning: geo-postgresql: unable to open supervise/ok: access denied
warning: gitaly: unable to open supervise/ok: access denied
warning: gitlab-monitor: unable to open supervise/ok: access denied
warning: gitlab-workhorse: unable to open supervise/ok: access denied
warning: logrotate: unable to open supervise/ok: access denied
warning: nginx: unable to open supervise/ok: access denied
warning: node-exporter: unable to open supervise/ok: access denied
warning: postgres-exporter: unable to open supervise/ok: access denied
warning: postgresql: unable to open supervise/ok: access denied
warning: prometheus: unable to open supervise/ok: access denied
warning: redis: unable to open supervise/ok: access denied
warning: redis-exporter: unable to open supervise/ok: access denied
warning: sidekiq: unable to open supervise/ok: access denied
warning: unicorn: unable to open supervise/ok: access denied

[ERROR] Failed to execute: gitlab-ctl stop -- be sure to run as root
```

Closes gitlab-org/gitlab-ee#2176

Re-apply workaround for Kubernetes 1.6 auth

Closes #2343

See merge request !1550

https://gitlab.com/gitlab-org/omnibus-gitlab/issues/2333

Add Postgres exporter queries configuration file

See merge request !1545

Re-apply workaround that got lost in https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests/1481

Get deb package using CI API to decrease triggered docker image size

Closes #2320

See merge request !1537

Make gitlab-ee recipes rubocop-friendly

See merge request !1486

Allow setting `usage_ping_enabled` in `gitlab.rb`

See merge request !1543

This setting is passed through to the Rails app, and defaults to true. Setting
it to false:

1. Disables the usage ping.
2. Prevents the usage ping from being enabled through the admin panel. It can
   only be enabled by either removing the line from `gitlab.rb` and configuring
   through the admin panel, or setting it to true in `gitlab.rb`.

Adding pgbouncer as EE specific dependency

See merge request !1345

Add an overview of package with bundled dependencies.

Closes #2201

See merge request !1476

Specify image tag explicitly for triggered builds

Closes #2330

See merge request !1540

Add external database config to gitlab-monitor

Closes #2288

See merge request !1529

Merge branch '2329-pg-insufficientprivilege-error-when-starting-gitlab-build-failed-15823054' into 'master'

Removing unless clause on postgresql extension enabling

Closes #2329 and #2302

See merge request !1538

Refactor Prometheus config generator

See merge request !1467

Add a link out to our kubernetes helm docs

See merge request !1541

Create a manual trigger to build package from .com repo also

Closes #2330

See merge request !1539