Added retries for rsync the genesis.sh to the genesis node, in case genesis
is rebooted as part of pre-genesis stage. This fix waits and retries until
genesis node reboot is done and is reachable.
Added wait in genesis.sh to wait for genesis node to come up, in case it
was rebooted in the previous stage.
Added retries in shipyard upload configdocs, to handle transient
timeouts.
Change-Id: I538f2c7b1543e6775ad580ccd3dc0b5cc88d68b1