Implement a network and storage API

[davidbau]

Here is a proposed api:

Storage:
netsave 'filename', [options], text
netload 'filename', [options], (text) -> see text

Queuing: exactly one delivery to exactly one receiver. If there are multiple sends, they get queued up for a while (e.g., an hour). Each recv dequeues exactly one message from some sender.
netsend 'filename', [options], text
netrecv 'filename', [options], (text) -> see text

Chatting: broadcast delivery to all listeners, but only those who are listening at the moment.
netchat 'filename', [options], text
neton 'filename', [options], (text) -> see text
netoff 'filename', [callback]

save should be equivalent to $.post('/save/(parentdir)/filename', { data: text })
load should be equivalent to $.get('/load/(parentdir)/filename'...)
In other words, the storage APIs should allow you to load and save new files on pencilcode.net itself, including new programs.

The interesting thing here is implementing send/recv/chat/on. These should also bounce off of pencilcode.net - on the server, there should be a node.js websocket implementation of send/recv/chat/
netsend/recv/chat/

See http://stackoverflow.com/questions/16392260/which-websocket-library-to-use-with-node-js for alternative websocket libraries to consider.