fix(store): list all monitors in [global] section of config

This is due to a Ceph bug - http://tracker.ceph.com/issues/10012.
Some configuration options aren't read properly if they're not in
the `[global]` section of the Ceph config. This means that the
store-gateway component was only connecting to the initial monitor,
instead of using all the enumerated monitors.

This notation is functionally equivalent, so it'll work just fine
for us.

Author: carmstrong

store/base/templates/ceph.conf

@@ -1,6 +1,8 @@
 [global]
 fsid = {{ .deis_store_fsid }}
 mon initial members = {{ .deis_store_monSetupLock }}
+mon host = {{ range $index, $mon := .deis_store_hosts }}{{ if $index }}, {{ end }}{{ Base $mon.Key }}{{ end }}
+mon addr = {{ range $index, $mon := .deis_store_hosts }}{{ if $index }}, {{ end }}{{ Base $mon.Key }}:6789{{ end }}
 auth cluster required = cephx
 auth service required = cephx
 auth client required = cephx
@@ -11,12 +13,6 @@ osd pool default pgp_num = {{ .deis_store_pgNum }}
 osd recovery delay start = {{ .deis_store_delayStart }}
 log file = /dev/stdout
 
-{{ range $mon := .deis_store_hosts }}
-[mon.{{ $mon.Value }}]
-host = {{ $mon.Value }}
-mon addr = {{ Base $mon.Key }}:6789
-{{ end }}
-
 [client.radosgw.gateway]
 host = deis-store-gateway
 keyring = /etc/ceph/ceph.client.radosgw.keyring