[DRBD-announce] linstor-server 1.4.0 release

Hi!

Here is the final release of 1.4 after 2 release candidates, it adds
support for device mapper write-cache and DRBD over NVMe.
We also improved the internal handling of snapshot objects which in turn
fixed a few snapshot related bugs and enabled support for external metadata
snapshots.

linstor-server 1.4.0
--------------------
 * Added write-cache layer
 * Split DISKLESS into DRBD_DISKLESS and NVME_INITIATOR
 * Allow DRBD over NVMe
 * Unified resource and snapshot handling and fixing snapshot related bugs
 * Support snapshots of DRBD with external meta-data
 * Dropped support for swordfish
 * Added new volume-definition flag for allocating GROSS_SIZE
 * Added query-max-volume-size for resource groups API
 * Fix for etcd connection drop outs
 * REST-API version 1.0.12

https://www.linbit.com/downloads/linstor/linstor-server-1.4.0.tar.gz

Linstor PPA:
https://launchpad.net/~linbit/+archive/ubuntu/linbit-drbd9-stack

Cheers,
Rene