mon: MonitorDBStore: use stringify()

Signed-off-by: Joao Eduardo Luis <joao.luis@inktank.com>
mon: MonitorDBStore: allow function override when inheriting the class

Signed-off-by: Joao Eduardo Luis <joao.luis@inktank.com>
mon: ceph_mon_kvstore_fix: fix store conversion bug manually

This tool is to be used to fix the cause of #4521, and it
will take an old-format store and convert all the osdmap's
full versions to the new-format k/v store.

Fixes: #4521

Signed-off-by: Joao Eduardo Luis <joao.luis@inktank.com>
ceph.spec.in: add ceph_mon_kvstore_fix to ceph package

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
ceph.install: add ceph_mon_kvstore_fix

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>