Add 6.0-to-6.2 update guide
Include a note if there are security fixes.
Mention security improvements in CHAGENLOG for 6.3
Mention GitLab CI 4.0 in CHANGELOG

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Show only first line of commit message on dashboard

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Fix sidekiq start text in documentation and gitlab:check
Merge pull request #5487 from perryfaro/fix-sidekiq-documentation

Change documentation about sidekiq
Merge branch 'security-upgrade' of /home/git/repositories/gitlab/gitlabhq
Bump gitlab-shell to 1.7.3
Merge branch '6_0_to_6_2' of /home/git/repositories/gitlab/gitlabhq
Merge branch 'master' of github.com:gitlabhq/gitlabhq
Revert "Best to escape strings not split them"

This reverts commit aca7f56fef15da8cbe66ec88c1d1a364d4ae8181.
Revert "Escape strings"

This reverts commit ce75f46bf7adb96ccc20f8ef3be581898ef05681.
Require gitlab-shell 1.7.4

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge pull request #120 from gitlabhq/master

Update