[FABRIC-879] Ensure users are uploaded when using the ensemble.auto.start=true. Change default checksum policy of the fabric maven proxy to warn (dev experience).
[FABRIC-874] Make ZooKeeperClusterBootstrap.create() wait for BootstrapComplete
FABRIC-887: fabric-git must use same TCCL when doing git operation as jgit cannot load resources if TCCL changes, and we have a unlucky race-conditon. So use the TCCL that loaded GitDataStore as that TCCL can jgit use to load its resources which is embedded in the same bundle.