GIRAPH-833: Upgrade to ZooKeeper 3.4.5 (aching)
GIRAPH-794: add support for generic hadoop1 and hadoop2 profiles (rvs)
GIRAPH-841: fix missing munge symbols error for non-munge-using profiles (Eugene Koontz via rvs)
GIRAPH-844: TextInputFormat for SimpleShortestPaths
GIRAPH-816: ByteArrayPartition not combining vertex edges (cmuchins via majakabiljo)
GIRAPH-642. Add Maven release profile for Giraph
GIRAPH-840: Upgrade to netty 4 (pavanka via majakabiljo)
GIRAPH-853: Fix concurrency issue in GiraphMetrics (majakabiljo)
GIRAPH-854: fix for test fail due to GIRAPH-840 (pavanka via majakabiljo)
GIRAPH-848: Allowing plain computation with types being configurable (ikabiljo via majakabiljo)
GIRAPH-855: RecordReaderWrapper swallows exceptions (aching)