Pin GitLab to 7.6.0-ee, CI to 5.3.0 and Shell to 2.4.0
Pin GitLab to v7.6.2-ee, CI 5.3.0, Shell 2.4.0
Use internal krb library since external doesn't exist on all systems
Update git version to 2.0.5.
Create a system git config at install.
Fix typos in git software definition.
Add git update to changelog
Merge branch '7-6-stable-ee' of gitlab.com:gitlab-org/omnibus-gitlab into 7-6-stable-ee