v1.7.2

linstor-server 1.7.2

• Fixed dm-cache, losetup module dependencies
• Prevent storage pool deletion if it has snapshots
• Fix NPE on controller changes
• Improve SSLTcpConnector exception handling
• resume-io even if a snapshots fails, to prevent blocked resources
• LVM also activates it LV's now
• try to fix another TCP-connector dead-lock
• add missing etcd storage-pool auto-select migration
• allow mixing of external meta-data and data volume driver kinds
• skip initial sync on VDO storage