GIRAPH-542: Progress calls in aggregate (majakabiljo)
GIRAPH-545: Improve Facebook Hadoop dependency (nitay)
GIRAPH-553: Cleanup HCatalogVertexOutputFormat (majakabiljo)
GIRAPH-528: Decouple vertex implementation from edge storage (apresta)
Add back type hint for getAggregatedValue() in Vertex.
GIRAPH-556: Race condition in EdgeStore (apresta)
GIRAPH-523: MasterObserver should pass in superstep number (gaurav.menghani via nitay)
GIRAPH-550: HiveVertexReader should call initialize, not users (nitay).
GIRAPH-550: HiveVertexReader should call initialize, not users (nitay)
GIRAPH-559: Giraph build breaks (nitay)
GIRAPH-554: Set PartitionContext in InternalVertexRunner (majakabiljo)
Fix mistake in GIRAPH-554
GIRAPH-561: Only print vertex/edge input classes if not null (aching)
GIRAPH-562: Implement getConf/setConf in AbstractHive classes (majakabiljo)
GIRAPH-563: Fix DefaultImmutableClassesGiraphConfigurable.java line
overrun (84 chars) from GIRAPH-562.
GIRAPH-559: use hive-io-experimental release (nitay)
GIRAPH-565: Make an easy way to gather some logs from workers on master (majakabiljo)
GIRAPH-480 Add convergence detection to org.apache.giraph.examples.RandomWalkVertex
GIRAPH-480 Add convergence detection to org.apache.giraph.examples.RandomWalkVertex