Add Dockerfiles of images for omnibus-gitlab's tests

See merge request !38

Rename variables

See merge request !36

Remove unused images

See merge request !34

Update PostgreSQL image to include golang 1.8

See merge request !32

Add image with golang for use with gitlab-ce builds with gitaly

See merge request !31

Add an image for updated postgresql-client

See merge request !29

golang-1.5-git-2.8.4

See merge request !28

Golang 1.5, 1.6, 1.7, 1.8 + Git 2.8.4

Add GitLab QA base image

See merge request !27

Environments image

See merge request !26

Remove job without Dockerfile

See merge request !25

[ci skip]

Fix yarn installation

Closes #7

See merge request !24

Clean up `apt` configuration and cache

See merge request !21

Add the file package for www Docker image

See merge request !22

Needed for https://gitlab.com/gitlab-com/www-gitlab-com/issues/1150

Adding Yarn for use instead of npm

See merge request !20

See the following issue for details: https://gitlab.com/gitlab-org/gitlab-ce/issues/27613

But essentially we need to be able to lock down sub-dependancies

Add gitlab-runner binary to www-gitlab-com

This request will add the `gitlab-runner` binary to the www-gitlab-com image. This is required to make CI work on a kubernetes cluster. 

This is a workaround for https://gitlab.com/gitlab-org/gitlab-ci-multi-runner/issues/1908 and is needed for https://gitlab.com/gitlab-com/infrastructure/issues/749

See merge request !19

Add image for ruby 2.3.3

Needed for: gitlab-org/gitlab-ce#24629

See merge request !18

This also removes an image which wasn't build yet, as thats absorbed
into the one I was working on.

Dockerfile.ruby-2.3-git-2.7-phantomjs-2.1-node-7.1

`ruby:2.3`

`git:2.7`

`phantomjs:2.1`

`node:7.1`

See merge request !17

Update Dockerfile.ruby-2.3-static-analyses

See merge request !16

Added `install-node` to install node:7.1