ANN: Governator 1.0.4

[Randgalt]

https://github.com/Netflix/governator

* WarmUps weren't being run for objects with no dependencies.

* Issue 33: Warm up errors were merely being logged. They now generate true exceptions. Any

exceptions thrown by warm up methods are wrapped in a single WarmUpException that is throw by

the LifecycleManager.start() method.

* Issue 32: Objects added to the lifecycle after LifecycleManager.start() was called were getting

warmed up in the Guice thread. This could cause deadlocks and other problems. Further, each object

would get warmed up independently. I've reworked this code so that post-start warm ups occur in

a separate thread and there is a small padding period so that multiple objects added near the same

time can get warmed up together.