Merge branch 'stable' into develop
Simplify the version generation and fix dirty builds appearing after first make (helps #62)
Draft implementation of logstash gem generation and publication (Fixes #60)
Improved version patching
Print ZMQ version information in logs
Make develop version compatible with older rubygems versions, specifically v1.8
Update change log
Fix zmq_3_x build (towards #63)
Graceful exit if using zmq transport with libzmq <= 4
Tidy makefile and add bundle rake call for publishing gems
Wrap zeromq load error in gem with our own exception so the user knows it's us that failed
Improve documentation - make ZMQ less prominent due to the additional dependencies, and document the Logstash 1.5.x plugin manager approach
Remove rvm get stable which may not be required and is breaking travis currently
ZeroMQ version warning
Cleanup moved ZMQ readme parts. Clean github.com downloads when make cleans
Tidy features list RE logstash integration
Improve some layout
Fix issue in build requirements with paragraph appearing in GNU make
Put rvm get stable back in travis along with key pull
Remove dirty flag - its not as workable as originally though
Push all gems to rubygems