GIRAPH-873 : Specialized edge stores
GIRAPH-899: Remove hcatalog from hadoop_facebook profile
GIRAPH-907: refactor giraph code to support multiple implementations of vertexId data (pavanka)
GIRAPH-908: support for partitioned input in giraph (pavanka)
GIRAPH-910: removing unnecessary boxing in some places in giraph-core (pavanka)
GIRAPH-894: make giraphconfiguration available to workercontext (pavanka)
GIRAPH-900: Remove timers for compute method (majakabiljo via pavanka)
GIRAPH-904: Giraph can hang when hostnames include uppercase letters (netj via pavanka)
GIRAPH-849. generated site has a few dangling links (Mirko Kaempf via rvs)
GIRAPH-842: option to dump histogram of memory usage when heap is low on memory (pavanka)
GIRAPH-918: GIRAPH-908 has a small bug reg counting entries (pavanka)
GIRAPH-915: With BigDataIO some messages can get ignored (majakabiljo via pavanka)
GIRAPH-922: SimpleEdgeStore has a bug causing NPE (pavanka)
fix build error (pavanka)
GIRAPH-919: Add worker to worker communication (majakabiljo)
GIRAPH-916: Wrong number of vertices stored reported to command line (majakabiljo)