HAMA-699: Add commons module

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1537427 13f79535-47bb-0310-9956-ffa450edef68
Remove deprecated constants

git-svn-id: https://svn.apache.org/repos/asf/hama/trunk@1540284 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of git://git.apache.org/hama into trunk