Update gitlab_git (CVE-2013-4489)
Shell escape code search
Correctly escape search query
Bump gitlab-shell to 1.7.4 (CVE-2013-4490)
Bump version to 5.4.1
Add db:setup to rake gitlab:test

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch '5-4-security-update' of /home/git/repositories/gitlab/gitlabhq into 5-4-stable