Fix nginx::vhost define for unicorn server.
Add puppetlabs apt::key and apt::source.
Change to unicorn::instance
change vhost to use listen_port
remove nginx vhost from puppet module
include unicorn in puppet::server::unicorn
saving work
fix proxy_set_header
add unicorn template and update unicorn and nginx defines
Remove prerun_command and postrun_command and chand certname location