Add oauth doc to 6.0 to 7.2 upgrader

Udate doc

Add dealing with newlines for editor to 5.1-to-6.0

Fix env variable style for documentation

Add missing elements to webhook doc

Fix minor spelling error in repo settings page

API: Fix labels return code

Update gems with errors, to prevent 500 errors

Consistency: Capitalize hex values of sugested colors

Fix Md style for API.

Fix Md style for projects API doc.

Fix grammar and spelling

Consistency, spelling and grammar

Label permissions

* Update label permission docs
* Add authorisation to labels via API

See merge request !1020

Use new git max_size in the settings initializer

This allows us to avoid repeating default max_size setting in the omnibus-gitlab repository.

See merge request !1021

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

Implement complete labels API (create/delete/update)

Fix commit msg

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

Better label color validation, fixes #7454

unfold commits

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

for commits#show

Remove labels via ajax

See merge request !1019