In response to the current discussion about raising attribution for contributors, I suggest we introduce a CHANGELOG file similar to the one used in Giraph [1]. For every commit, we add a single line with the id and name of the jira, the name of the committer and potentially the name of the contributor, e.g.
MAHOUT-1234: Fixed bug in some class (john-doe via ssc) What do others think about that? Best, Sebastian [1] https://github.com/apache/giraph/blob/trunk/CHANGELOG