Initial commit with simple working examples

This commit includes:
 - Start README, it includes:
    - Installing zeromq from source
    - Installing zeromq bindings for Go
    - Installing zeromq bindings for node.js
    - How to run the response server
    - How to run the request Go client
    - How to run the request node.js client

 - Start simple response server in Go
 - Start simple request client in Go
 - Start simple request client in node.js
Add note for OS X users regarding pkg-config
Only listen on one port
Add crashy server example
Rename server to rep-server and client to req-client
Update readme with server and client names
Add a push pull chat example with cli client
Remove unused port
Save all messages per instance of node
Keep index.html file in memory when node http server starts
Move source files to match layout of go la talk repo
Merge remote-tracking branch 'remotes/talks/master' into slides
Make sure to close the sockets
Minor code cleanup
Add slide deck for ØMQ
Merge pull request #4 from xbudex/master

ZeroMQ Talk