Microsoft-CISL/REEF — pull request #778 by markusweimer (2014-05-01 01:01:03+00:00)
Title: Unit test of multiple container requests

* Added `YarnResourceRequestHandlerTest` to test `YarnResourceRequestHandler`
* Added more logging to `YarnContainerManager.onContainerRequest()`
* Extracted the interface of `YarnContainerRequestHandler` and moved its implementation to `YarnContainerRequestHandlerImpl`