Pulp

To reproduce:

1. `vagrant up` to master
2. make a change to this file in your local checkout
3. Check the local vagrant environment to see if it received your changes with cat /usr/lib/systemd/system/pulp_resource_manager.service
4. Observe that your changes will not take effect in your dev environment
5. Which makes sense because this is not a symlink:

[vagrant@dev ~]$ ls -la /usr/lib/systemd/system/pulp_resource_manager.service 
-rw-r--r--. 1 root root 459 Dec  6 07:35 /usr/lib/systemd/system/pulp_resource_manager.service

In the dev environment, I expect all installed systemd .service files and all upstart init scripts to be symlinks to their source locations in the repo.