Add DNS lookup method to IP interfaces.
Transparent IP proxying: Setup supervisor to route outgoing packes back to the sandbox.

After this change, any attempt inside the sandbox to connect or send datagrams to a non-localhost address will be routed to 127.0.0.1:23136. Some process inside the sandbox can listen on that port and act as an IP proxy. E.g. such a process could request an IP capability via the Powerbox and proxy through that. We plan to extend sandstorm-http-bridge with this functionality.

The ip_tables kernel module must be loaded for this to work. If it's not loaded, the supervisor simply will not enable the routing. We should extend run-bundle and/or the Sandstorm front-end to detect this problem, as well as the Sandstorm installer.
Refactor Makefile. Now more parallel and less redundant.
Update to Meteor 1.0.2.
Use 'meteor build' rather than deprecated 'meteor bundle'.