FLUME-825: Need to remove dependency on hadoop core from flume-ng-core project
Review Request #2660 - Created Nov. 1, 2011 and submitted
* Remove Hadoop as a flume-ng-core dep. * Added commons-cli as an explicit dep. We were accidentally getting it via hadoop. * Cleaned up unused org.apache.hadoop.* class usage in the ExecSource test.
Unit tests pass.