* The ZMQ_CONNECT_DELAY option was renamed to ZMQ_IMMEDIATE

Testing github jenkins integration

This reverts commit 0640d6d2.

Fix cmake build

Renamed inproc connect test (name was too long)

tests: don't listen on public ports

Reverted pull request 666

This reverts commit bfd472f9.

This reverts commit 1206f457.

curve key names as in libcurve, symetry design, a few logic improvements

Added test case for NULL domains

NULL mechanism was not dealing with ZAP denials properly

Fixed random failures in test_security_plain and _curve

* ZAP handler thread was not getting time to start up
* Code now creates and binds handler socket in parent thread and
  passes the socket to the zap_handler, so this always gets the
  authentication requests.

Fix windows build

simplify test_security_curve.cpp with zmq_z85_encode

Added z85 codec to ZMQ API

* Removed redundant Z85 code and include files from project
* Simplified use of headers in test cases (now they all just use testutil.hpp)
* Export zmq_z85_encode() and zmq_z85_decode() in API
* Added man pages for these two functions

Fixed Z85 methods to be static

Support high water mark on inproc socket connect before bind.