ceph.in: add emacs modeline

Signed-off-by: Sage Weil <sage@inktank.com>
ceph: fixup do_help() function connection check

We might have cluster_handle defined, but not have
successfully connected. Instead, check if it's in
the connected state.

Signed-off-by: Greg Farnum <greg@inktank.com>
ceph: print basic options before connecting

This will let you control-c if the mon is unresponsive.

Signed-off-by: Sage Weil <sage@inktank.com>
ceph: add --connect-timeout option

Signed-off-by: Sage Weil <sage@inktank.com>
ceph: default 5 second timeout for -h

Signed-off-by: Sage Weil <sage@inktank.com>