HAMA-742: Add our own RPC implementation

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1514580 13f79535-47bb-0310-9956-ffa450edef68
HAMA-767: Add vertex addition/removal APIs (Anastasis Andronidis via edwardyoon)

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1514667 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'upstream/trunk' into trunk
HAMA-796: Add Vector multiply Matrix for DoubleVector as well as DenseDoubleVector

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1514736 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'upstream/trunk' into trunk
HAMA-795: add AutoEncoder.