add nginx with a stub of a config
removed unneeded unicorn conf
lets use the latest sprinkle
have Nginx

- server from /srv/application
- make use of backend servers
- remove default enabled site
- generate config based on template
move location to serve app from to /srv
remove verifyer from nginx  :nginx_app_config
som git borks...
Merge pull request #4 from arnoFleming/nginx-and-unicorn

Nginx and unicorn