bundle update
Ignore rubymine projects from git
removing tar.gz files
Setting up ZeroMQ and CZMQ as git submodules
Updating gemspec to include files in git submodules
typo in readme
update Readme and Rakefile for submodules
Update .travis.yml
socket monitor thread: don't double close socket, or read from closed socket
gemspec update
monitor: prevent calling receive once the socket being monitored has been destroyed
Allow ruby-head travis build to fail; there is a bug with bundler in travis:

https://github.com/travis-ci/travis-ci/issues/1195
mark socket wrapper is destroyed before calling destroy on the socket
Adding 'ZeroMQ' to text of gem summary to show match in search for 'zeromq' on rubygems.org