gitlab-ce: send full Repository message on all RPC calls
Needs gitaly gem 0.5.0.
Do after https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9291 is merged (cc @eReGeBe ).
Each Gitaly::Repository message sent from gitlab-ce to Gitaly should include the storage_name and relative_path fields.
Also clean up the TODO in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/10343 Gitlab::Workhorse.git_http_ok