add host option to the startup of rack server

[lustremedia]

I am working on a VM and I wanted to access iye from main main machine. I usually NAT my webapplications to a port on the mother ship. However Rack nowadays only binds to 127.0.0.1 instead of 0.0.0.0 thus it is not available to the outside.

I monkeypatched app.rb to look like that:
Rack::Server.start :app => Web, :Host => '0.0.0.0', :Port => 5050
to get it working