New class for handling ZMQ errors in an Obj-C way.
New initializer for ZMQException
Gracefully fail using Obj-C Exceptions instead of nil values
Include ZMQException to the global header
Xcode stuff, it's probably safe to just ignore this garbage
Remove auto generated headers.
made some changes for zmq 3.1.1 compatibility
Merge pull request #1 from szehnder/zmq-3.1.1

made some changes for zmq 3.1.1 compatibility
added subscribe: and subscribeAll
Merge github.com:technolize/objc-zmq

Conflicts:
	src/ZMQSocket.m
Use latest SDK
Update for ARC et. al.
Merge branch 'master' of https://github.com/rowanj/objc-zmq      Had to fix a few conflicts. Now it’s ARC.