Add cluster-id to cluster selector

Multiple ceph clusters can have same names. So in that it
will be difficult to differentiate just from the name.
With this change, cluster-selector in both dashboard
and manage applications.

Clusters will be sorted based on their name.

Signed-off-by: Kanagaraj M <kmayilsa@redhat.com>
Merge pull request #77 from kmkanagaraj/cluster-selector-fsid

Add cluster-id to cluster selector