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

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

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

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

Add 7.1.1 patch release changelog

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

Conflicts:
	CHANGELOG

follow curl redirects

Patched `MergeRequest` to return more data.

prevent events duplication loading

Fix milestones description's max length

Fix 404 error when clicking the branch link on hipchat message

rtrim() input before checking if note form is empty

add git config --global core.autocrlf check

Restrict commit area resize to vertical.

Bump gitlab git

Fixes #1394

See merge request !1015

Cache LDAP check everywhere

See merge request !1008

Fix post-receive worker for some projects

If project ends with `-git` or `_git` or any kind of `git` - it get ignored by post-receive worker

See merge request !1018