auto detect ceph.conf doesn't work as expected

[lihaijing]

There are 3 issues about auto detect function:
1、When I used auto detect to get crushmap and ceph.conf, I got content of crushmap and ceph.conf in the crushmap text box, and ceph.conf text box was empty.
2、The content of ceph.conf that I got by agent/cephceonf_discover.py detect_ceph_conf() method, is different from ceph.conf file under /etc/ceph dir. I think the user may want to get the ceph.conf content exactly the same as /etc/ceph/ceph.onf file.
3、My ceph.conf file contains [client.x] sections, but after I imported the ceph cluster, the content of my ceph nodes' ceph.conf file had been changed, the [client.x] sections gone.