Sending (star, stop, status etc.) commands to processes in a process group does not work => ArgumentError

[szymon-jez]

Example:

$ bluepill status
web_interface(pid:32667): up
jobs:
  job_1:IMPORT(pid:6994): up
  job_2:UPDATE(pid:7032): up

$ bluepill status job_1:IMPORT
$ bluepill status jobs:job_1:IMPORT
Received error from server:
#<ArgumentError: wrong number of arguments (3 for 0..2)>
(eval):1:in `status'
/shared/bundle/ruby/2.0.0/gems/bluepill-0.0.68/lib/bluepill/application.rb:102:in `block (3 levels) in start_listener'
/shared/bundle/ruby/2.0.0/gems/bluepill-0.0.68/lib/bluepill/application.rb:41:in `synchronize'
/shared/bundle/ruby/2.0.0/gems/bluepill-0.0.68/lib/bluepill/application.rb:41:in `mutex'
/shared/bundle/ruby/2.0.0/gems/bluepill-0.0.68/lib/bluepill/application.rb:102:in `block (2 levels) in start_listener'
/shared/bundle/ruby/2.0.0/gems/bluepill-0.0.68/lib/bluepill/application.rb:96:in `loop'
shared/bundle/ruby/2.0.0/gems/bluepill-0.0.68/lib/bluepill/application.rb:96:in `block in start_listener'