- Fixes a bug in GiraphScenarioWrapper, where the passed in neighborId, message, and vertex value before and after were not being saved as separate objects. Adding a makeClone method to make clones of those.
- Removing some printlns from other files.
- Renaming GiraphTestScenarioWriter to GiraphDebugTraceReader. Using that class simply to test that the traced proto files look ok. Checking it in to mainly help Vikesh.