New TurnKey GitLab version (15.0)

Changes:

• GitLab:
  • Upgraded to the latest upstream version (11.1.0)
  • Change inithook to use rails console for settings password and email. [ Zhenya Hvorostian ]
• Install yarn from yarnpkg apt repo, pin and secure gpg. [ Zhenya Hvorostian & Stefan Davis ]
• Update Golang (1.10.3)
• Install Gitaly [ Zhenya Hvorostian & Anton Pyrogovskyi ]
• Note: Please refer to turnkey-core's changelog for changes common to all appliances. Here we only describe changes specific to this appliance.

Links

• Release meta-files (signature, manifest)