systemdkit v0.1.1

• Renamed the OTP application from :systemd to :systemdkit so dependencies can use the normal {:systemdkit, "~> 0.1.1"} form.
• Renamed the GitHub repository to elixir-vibe/systemdkit.
• Kept public Elixir modules under the Systemd.* namespace.

Use:

{:systemdkit, "~> 0.1.1"}