JRFC 36 - SND -- reversed + pathed DNS

[jbenet]

I really, really dislike the backwards-to-paths nature of dns. It's not like Unix and other hierarchical file systems didn't exist in 1983. So let's reverse it, and use paths.

# dns
releases.lists.refs.ipfs.io

# snd
ipfs.io/refs/lists/releases
cat /snd/ipfs.io/refs/lists/releases
curl fs://snd/ipfs.io/refs/lists/releases

For all this, we need:

• an snd resolver that uses dns
• an HTTP server that serves snd lookups
• a FUSE filesystem that mounts snd
• the fs:// standard and handler

This will help with "the DNS web".