zeromq tests

MacPro:~ lydia$ python client.py --messages=1000 --message-size=1000000
Connecting to server...
1000 1000000 297.66666546 MB/s 297.66666546 messages/s

MacPro:~ lydia$ python client.py --messages=10000 --message-size=100000
Connecting to hello world server...
10000 100000 200.893595587 MB/s 2008.93595587 messages/s

MacPro:~ lydia$ python client.py --messages=100000 --message-size=1000
Connecting to hello world server...
100000 10000 54.5556325827 MB/s 5455.56325827 messages/s

MacPro:~ lydia$ python client.py --messages=100000 --message-size=1000
Connecting to hello world server...
100000 1000 8.36256888389 MB/s 8362.56888389 messages/s

MacPro:~ lydia$ python client.py --messages=100000 --message-size=100
Connecting to hello world server...
100000 100 0.866791151229 MB/s 8667.91151229 messages/s

MacPro:~ lydia$ python client.py --messages=100000 --message-size=10
Connecting to hello world server...
100000 10 0.0903534916772 MB/s 9035.34916772 messages/s

MacPro:~ lydia$ python client.py --messages=100000 --message-size=1
Connecting to hello world server...
100000 1 0.00909379595588 MB/s 9093.79595588 messages/s