Hi all,

This review takes into account the previous review recommendations:
        - change args.get with default values
        - change list() so that it returns
                - default the environment file related to the instance
                  (/etc/sysconfig/dirsrv-<serverid> or $HOME/.dirsrv/dirsrv-<serverid>)
                - all the environment files if called with 'list(all=True)'
        - change exists() to return 'len(self.list()) == 1'
        - start() rebinds to the instance so that its final state is DIRSRV_STATE_ONLINE

https://fedorahosted.org/389/attachment/ticket/47625/0002-Ticket-47625-CI-lib389-DirSrv-not-conform-to-the-des.patch