def handle_command(command)
      case command
      when 'REHASH'  then @core.config.load!
      when 'STOP'    then Thread.new { @core.stop }
      else STDERR.puts "Unknown IPC command: #{command.inspect}"
      end
    end
def handle_command(command)
      case command
      when 'REHASH'  then @core.config.load!
      when 'STOP'    then Thread.new { @core.stop }
      else STDERR.puts "Unknown IPC command: #{command.inspect}"
      end
    end
Handles an incoming IPC command.

 @param command [String] the command