Simple unsubscribe from event implementation.
Also, a race condition between publisher and subscriber readiness prevented some of the tests from completing (for me), so interlocked the publisher emit sequences with the publisher socket on connect event for these tests.
utilizing toString() to determine regex equalities as per the discussion here: https://github.com/visionmedia/axon/pull/101#issuecomment-21303226
Merge pull request #101 from captureplay/unsubscribe

Simple unsubscribe from event implementation.