Fix API::APIHelpers -> API::Helpers again for master

Rails Autoload find file to require is use , APIHelpers -> api_helpers.rb, not helpers.rb;

Add extra padding to README block
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

cc @skyruler 

See merge request !1671

Improve css code quality for projects.scss
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !1674

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

Fix alignment of the filter counter for Issuables

## Before:

![Screen_Shot_2015-10-22_at_4.00.15_PM](/uploads/5f54faf3b056c1b3e2cb1b6d5c27614b/Screen_Shot_2015-10-22_at_4.00.15_PM.png)

## After:

![Screen_Shot_2015-10-22_at_3.58.04_PM](/uploads/127a90795aed7d41c053a735bbee0e3b/Screen_Shot_2015-10-22_at_3.58.04_PM.png)


See merge request !1667

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

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

Make file list more compact
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !1669

Restore edit button in project readme

Also make sure edit button can actually be clicked, like !1668.

See merge request !1670

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

Update style of snippets pages

![Screen_Shot_2015-10-18_at_13.04.13](/uploads/95d58b64fa81aa4e75568d2d7b4a6b08/Screen_Shot_2015-10-18_at_13.04.13.png)

![Screen_Shot_2015-10-21_at_11.11.10](/uploads/106371d718a07a9ccdad9148812211fd/Screen_Shot_2015-10-21_at_11.11.10.png)

Replaces !1567.

Fixes #1767 and #2538.


See merge request !1637

Prefer project with exact path to differently cased one when both exist.

Fixes #3113.

See merge request !1649

Fix 500 when editing CI services

Fixes #3090

See merge request !1663

Require jobs to be named

This properly presents error for .gitlab-ci.yml having empty job name.

See merge request !1662

Fix CSS class for runner status

Fixes #3117 

See merge request !1665

[ci skip]

Fixed suggestion in documentation resulting in linting error 'variables should be a map of key-valued strings'

Documentation now suggests a valid option with the intended result.

See #3147 

`"yes"`, opposed to `yes` is not casted to a boolean. `variables` only accepts key-valued strings.

Better solution would be to change the parsing of `variables` (allow boolean or check the actual value of the string).



See merge request !1660

Make sure MR refresh service correctly determines newly added commits.

Fixes #3140.

See merge request !1659

Fix build trace updating

Fixes #2910 

See merge request !1657

Don't show "Add README" link in an empty repository if user doesn't have access to push

Reporter users would see this before even though they didn't have access to push:

![image](/uploads/1dd328ab7e58cd00c5b696f079816e16/image.png)

It's not complete accurate to include the push command-line instructions, but users may still want the instructions to clone. After:

![image](/uploads/3d214e140916d2f174d0b5fec0ac472d/image.png)

Closes #3094

See merge request !1626

Closes #3094