Add some examples in Go for Chapter 4
A little tip in README
comments in mdbroker.go & some coding style
comments in mdbroker.go, again
Merge pull request #291 from ianoshen/master

Add some examples in Go for Chapter 4
Java chapter 2 example
chapter3 java examples
Merge pull request #292 from miniway/master

Java chapter 2 and chapter 3 examples
Remove deadlink to an image (README_1.png)
Replace NOBLOCK with DONTWAIT
Fix typos/formatting issues
Use zmq::proxy rather than zmq::device
Merge pull request #293 from Alexis-D/master

Fix a few typos & replace NOBLOCK by DONTWAIT in Python examples
Merge pull request #294 from jdswinbank/mtserver.cpp-fix

Use zmq::proxy rather than zmq::device
initialize queue before worker threads connects and start it in blocking mode.
Merge pull request #295 from rganz/master

C# mtserver not working
- implemented ZHelpers.SetID()
- poll 10 milliseconds not 10'000 milliseconds like in the C example (see ZMQ_POLL_MSEC in http://www.zeromq.org/docs:3-1-upgrade)
Merge pull request #296 from rganz/master

More C# examples fixed
Simplify the req/rep broker example
Merge pull request #297 from devin-c/cleaner_ruby_rrbroker

Simplify the ruby req/rep broker example