Fixed service files according to my pull request

Do not depend on unicorn as well. The order does not matter and it could
be run with passenger easily.
These services now seems to work

No idea what was going wrong in the first place...
Use VCS source to fix REVISION errors

Gitlab gets its own revision from the git history. If the gitlab
directory is not a git repository it shows its own version like this:
"GitLab 7.4.2 fatal: Not a git repository (or any of the parent
directories): .git"

Found in the gitlab source:

$ ag REVISION
config/initializers/2_app.rb
3:  REVISION = Gitlab::Popen.popen(%W(git log --pretty=format:%h -n1)).first.chomp
Patch sourcefiles to include a static revision

Including the git repository triples the package size
Merge https://github.com/hunger/gitlab-pkgbuilds
Typo
Removed systemd target
Fixed example files
Synchronized fix_perms with tmpfiles.d
Removed autom. backup.

It breaks pkg upgrade as it tries to write to
/usr/share/gitlab/tmp/backup.
Typo
We don't need this, sidekiq is not a daemon!
Minor changes to unicorn.service
Fixed wrong sed call
Synchronized fix_perms to tmpdfiles.d
Quoted paths
Updated todo
typo
Fixed wrong quotes
Fixed wrong checksum