fix: link_to_merge_request_diff_line_note

Fix 500 error in Ruby 1.9.

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

Conflicts:
	doc/update/upgrader.md

We Hate Options

Fix numbering in 6.3-to-6.4.md

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

Feature: show last commit for Blob#show

Fixes #970

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

Update changelog for #6267

Fix wrong issues appears at Dashboard#issues page

Fixes #1028

Ace Editor as gem

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

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

Fixes #6073, Update grammer in MR accept form

Fixes #6187, Update dead links

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

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

Sockets Are Standard

Filtering service used klass instead of passed items.
Because of this you see list of all issues intead of authorized ones.
This commit fixes it so people see only issues they are authorized to
see.
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

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

Minor README fix

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

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

I guess it should be "...*more* than 50,000"

Better submodule links

Detect if submodule is hosted on this GitLab server, gitlab.com or github.com.
Hash links directly to commit in repo.

Replace badge to labels, because twbs3 doesn't supprot colored badges