The CI prefers to receive the projects added to CI first

Commits with [ci skip] have special skipped status

![Screen_Shot_2015-07-30_at_14.02.50](https://gitlab.com/gitlab-org/gitlab-ci/uploads/f200af385679b564cd15d730bd4ccd20/Screen_Shot_2015-07-30_at_14.02.50.png)

+ Commits with [ci skip] are marked as skipped
+ Commits without builds are marked as skipped

Resolution for:
+ https://dev.gitlab.org/gitlab/gitlab-ci/issues/264
+ https://dev.gitlab.org/gitlab/gitlab-ci/issues/266

This requires CE update:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/1073

/cc @vsizov @sytses 

See merge request !216

Rename type to stage

However, make the `type` and `types` as alias for `stage` and `stages`.

/cc @vsizov @sytses 

See merge request !222

Remove unused entities



See merge request !224

Refactor access_token usage for API requests

This MR refactors GitLab API usage to use either access_token or private_token. It also allows to use access_token when executing GitLab CI API.

/cc @vsizov @dzaporozhets 

See merge request !226

Fix truncate_first_line if message is nil

Fixes https://gitlab.com/gitlab-org/gitlab-ci/issues/255

/cc @jacobvosmaer 

See merge request !217

Use avatars from GitLab

Rewrite Gravatar URLs if needed in order to have images in different size

/cc @dzaporozhets @vsizov 

See merge request !220

Rewrite Gravatar URLs if needed in order to have images in different size

Make YAML validation stricter

/cc @vsizov 

See merge request !218

Randomize test database

/cc @vsizov 

See merge request !219

Added Application Settings

This moves some of the settings from application.yml to Admin page.

![Screen_Shot_2015-07-30_at_12.22.27](https://gitlab.com/gitlab-org/gitlab-ci/uploads/d37aa0003d9afaeb85aa350bb02e6f07/Screen_Shot_2015-07-30_at_12.22.27.png)

/cc @sytses @vsizov 

See merge request !215

Do not use image's file name as alternative text

`image_tag` by default uses the image's file name for the img tag's alt
attribute. This is not preferable in many cases. E.g. it clutters the UI
with a long hash string if a gravatar could not be loaded.

To fix this, the `alt` option is set for `image_tag` calls.

![gitlab-ci-img-alt](https://gitlab.com/dgerhardt/gitlab-ci/uploads/2699d149983912e458e2375fe9732b0d/gitlab-ci-img-alt.png)

See merge request !214

Truncate commit messages after subject line in table

Commit messages are now additionally truncated after the first line.
Before, a commit message's body was attached behind the subject which
made messages hardly readable in some cases.

![gitlab-ci-truncate-commitmsg](https://gitlab.com/dgerhardt/gitlab-ci/uploads/a0c601eb1abbce7a7b9e4e0e3f16f303/gitlab-ci-truncate-commitmsg.png)

See merge request !213

Fix inline edit runner-description

Fixes: #217
Replaced .show and .hide with .removeClass('hide') and .addClass('hide') (Like done for #192 in MR 177)

See merge request !206

`image_tag` by default uses the image's file name for the img tag's alt
attribute. This is not preferable in many cases. E.g. it clutters the UI
with a long hash string if a gravatar could not be loaded.

To fix this, the `alt` option is set for `image_tag` calls.

Commit messages are now additionally truncated after the first line.
Before, a commit message's body was attached behind the subject which
made messages hardly readable in some cases.