HAMA-790: Add unit test for SemiClustering

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1525751 13f79535-47bb-0310-9956-ffa450edef68
HAMA-804: Create NeuralNetwork Example.

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1525911 13f79535-47bb-0310-9956-ffa450edef68
HAMA-804: Fix rat check fail

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1526167 13f79535-47bb-0310-9956-ffa450edef68
HAMA-805: Problem initializing pipes in HamaStreaming

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1526259 13f79535-47bb-0310-9956-ffa450edef68
fix