Closes #246 #284 #285 #288 #289 #291 - Improved Fluo cluster management.

Pull request for  #246 #284 #285 #288 #289 #291
This is output for a script so I think some Sys out calls are ok.  I agree that all warnings should us use log.warn().  I would like to keep any "Action....DONE" using System.out.

See the existsButNotRunningMsg().  Users are told to run 'fluo init'.