create the archives log directory for source installs
Use the create action instead of modify

Using the modify action for the user resource doesn't create the user if it doesn't exist.

The create action creates the user as well as modifies it if it exists.
Merge pull request #269 from caleb/create-nagios-user-in-server_source-recipe

Use the create action instead of modify to create a user in the server_source recipe
Merge pull request #267 from caleb/archive-directory-create

Create the "archives" log directory for source installs