Use more specific class names: grouped -> btn-grouped

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Refactor scss

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Add edit button to MergeRequest diff

It will redirect you to file edit page.
After submit changes you will be redirected back to merge request.

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Add changelog entry

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
set layout margin-bottom 50px
Add style guidelines in separte paragraph.
postgresql testing on travis
Solve conflict and add more explanations on how to contribute.

Conflicts:
	CONTRIBUTING.md
Merge branch 'master' into styleguide

Conflicts:
	CONTRIBUTING.md
Markdown doesn't render correctly yet.
Add Gemnasium Service for Gitlab

Conflicts:

	db/schema.rb
Merge pull request #6372 from gemnasium/add_gemnasium_service

Add support for Gemnasium as a project service
Merge pull request #6366 from popomore/patch-1

set layout margin-bottom 50px
Merge pull request #6369 from skv-headless/postrgesql_travis_testing

postgresql testing on travis
 Merge branch 'styleguide' into 'master'

Styleguide

As discussed.
Merge branch 'feature/edit_from_mr'

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	CHANGELOG
Merge branch 'master' of dev.gitlab.org:gitlab/gitlabhq
Its start for 6.7.0

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Add jasmine tests to postgresql db
 Merge branch 'refactor_css' into 'master'

Refactor Css