Updates to unit tests.

...dlightcontroller/core/module/FloodlightModuleContext.java

...net/floodlightcontroller/perfmon/PktinProcessingTime.java

...t/floodlightcontroller/storage/AbstractStorageSource.java

...loodlightcontroller/core/test/MockFloodlightProvider.java

...lightcontroller/devicemanager/test/MockDeviceManager.java

...ghtcontroller/storage/memory/tests/MemoryStorageTest.java

...a/net/floodlightcontroller/storage/tests/StorageTest.java

...ava/net/floodlightcontroller/test/FloodlightTestCase.java