s/workerGroup/eventLoopGroup/
Added docs for the waitForPendingOperationsToFinish method.
Fixed some questionable connection bookkeeping.
Merge branch 'threadless_connections' into connection_failure_listener

Conflicts:
	src/main/java/com/relayrides/pushy/apns/PushManager.java
	src/test/java/com/relayrides/pushy/apns/PushManagerTest.java