Properly handle PyZMQ >= 0.14 when freezing
Don't fail the setup.py if zmq is a liile on the old side
Merge branch 'merge-esky-fix' into 2014.1
Merge pull request #11535 from s0undt3ch/2014.1

Properly handle `IOError`'s and `OSError`'s at the parser level.
Merge pull request #11506 from leoluk/2014.1

Fix esky build for pyzmq>=14.0.0 in 2014.1 branch
Add simple tool to help track down auth calls
make this a tracing thing

@basepi, please cherry these
Add proxy argument to virtualenv state which is passed to pip install