Update to latest version of nanomsg
It's more logical to bind REP and connect REQ
fix setup.py, add make install
fix recv: confusion between max and actual size of message
add shutdown method for sockets
make setsockopt take an int
Add *buggy* echo example.

There is a bug in the client that makes it freeze sometimes.
Merge pull request #1 from catwell/master

Update to latest version of nanomsg