Ensure /var/log/nginx directory and logs are created.

Nginx will not create its own logs directory and log files itself.
Ensure they are created and owned properly when installed.
Add more SSL configuration parameters

Add ssl_{ciphers, protocols, ca, crl_path, verify_client} options to
vhost templates and related classes.
Merge pull request #23 from geoffgarside/ssl-params

Add more SSL configuration parameters
Merge pull request #22 from geoffgarside/log-files

Ensure /var/log/nginx directory and logs files are created.