- add GEM_PATH to hadoop_recycle_env
- Hadoop_command function received an array for the input_path parameter
- We should be able to specify comma or space separated paths; the last
space-separated path in Settings.rest becomes the output file, the others are
used as the input_file list.
- Make configliere Settings and streamer_instance.options() be the same
thing. (instead of almost-but-confusingly-not-always the same thing).