Indentation with 2 spaces
Improved install script

- Indent using tabs. Meanwhile using tabs seems to be best practice. See:
  https://projects.archlinux.org/pacman.git/tree/proto/proto.install
- Use sudo -u instead of su -.
- Add a hint for using backup rake tasks.
- Removed a oneliner funktion.
Patch service file in prepare()
Fixed tons of broken symlinks, logdir owner
SHA512 is overkill, SHA256 works fine here
Reverted parts of ac06c8e3, my mistake sorry
Reordered contributor comments
Unified gitlab-shell with gitlab pkgbuild
Run systemd-tmpfiles after install
Fixed install script

- Run systemd-tmpfiles AFTER user creation
- Synchronize fix_perms with tpmfiles.d file
 Let's seet chown to gitlab:gitlab
Fix shasums