Github user tdunning commented on the issue:
https://github.com/apache/nifi/pull/475
I got mentioned a few responses ago, so I feel that I ought to answer.
Either approach to supporting different distributions is a really good idea
since it makes it easier for users, but
Github user mattyb149 commented on the issue:
https://github.com/apache/nifi/pull/475
Since other Apache projects are taking the stance of including the
repositories in the top-level POM, I think NiFi should too. These would include
(at a minimum) the MapR, Cloudera, and Hortonworks