Updated to ZMQ 4.0.0
Updated to ZMQ 4.0.1
Updated to ZMQ 4.0.2
Updated to ZMQ 4.0.3
Updated to ZMQ 4.0.4
Updated to ZMQ 4.0.5
Added myself (Lars T. Kyllingstad) as author

I've been maintaining these bindings for a while now.
Merge pull request #15 from kyllingstad/zmq4

Updated to ZMQ 4.0