Committing artifacts from nginx-vhosts

This is the default dokku plugin.  All I'll be doing is modifying this.
First hack at making this work.

Makes the following assumptions:
 * no SSL (my server doesn't support it -- yet)
 * the VHOST stuff is unnecessary (for now)
 * ... that my nginx syntax is right!

I'm committing because I have no easy way to push this to my host from
my current location (work's firewall is quite restrictive).  I'll
therefore test this later and make improvements.