iconara/ione — pull request #11 by mimperatore (2014-09-15 00:18:00+00:00)
Title: Fix race condition by synchronizing access/modification of connection @state

(Per @iconara's request on https://github.com/iconara/ione/pull/8)

Ensure @state check and set operations are done in critical section, to avoid this method from being executed multiple times in a multi-threaded race-condition scenario.

I noticed that the ```@lock``` attribute was being referenced in ```BaseConnection``` but defined in its subclasses. I pulled its creation/initialization into the initializer of ```BaseConnection```.