create a branch named erlzmq3,to support libzmq, add some macros , modify some codes and add a simple test in erlzmq_test.erl. end , it can support zeromq3.
modify for erlzmq3
modify erlzmq.erl for erlzmq3
First,i apology to you for my rude ,this is my first using pull request and use it not correctly,I should raise a ticket for my quetion. second, I didn't find the branch 3-x before,I only do some work for libzmq on master and do some test.