Add dependencies on the deluge user and packages so services are started

The files in /etc/init require the deluge user and the deluged/deluge-web
packages to function, but did not declare a puppet dependency on these
resources. This resulted in the deluged/deluge-web services failing to start
after applying this class for the first time.
Merge pull request #1 from nhinds/missing-dependencies

Add dependencies on the deluge user and packages so services are started