change gitlab logo with anezi logo (white)

merge upstream 6.0

Reduce sidekiq workers to 4 (try)

fc

Merge pull request #138 from gitlabhq/6-3-stable

6 3 stable

Merge pull request #127 from gitlabhq/6-2-stable

Version 6.2.3

Merge pull request #121 from gitlabhq/6-2-stable

6 2 stable

Merge pull request #114 from gitlabhq/6-2-stable

Version 6.2.1

Use site title

fixed conflicts