- Skip device name validation for some device types. (dlehman)
    - Add a property indicating whether a device is directly accessible. (dlehman)
    - Add support for read-only btrfs snapshots. (dlehman)
    - Add tests for snapshots. (dlehman)
    - Special treatment for getting parted device for old-style lvm snapshots.
      (dlehman)
    - Some devices have immutable formatting. (dlehman)
    - Detect existing btrfs snapshots. (dlehman)
    - Drop special accounting for snapshot space usage in VG. (dlehman)
    - Use LVMSnapshotDevice when populating the devicetree. (dlehman)
    - Add Device classes for snapshots. (dlehman)
    - Add ignore_skip keyword arg to lvactivate. (dlehman)
    - Add optional kwarg to force removal of a logical volume. (dlehman)
    - Add backend functions for creating and managing snapshots. (dlehman)
    - Add docstrings for BTRFSVolumeDevice and BTRFSSubVolumeDevice. (dlehman)
    - Remove duplicate portion of lvm config string. (dlehman)
    - Reset the devicetree before tearing everything down in _cleanUp. (dlehman)
    - Make sure disk filters are applied even if populate fails. (dlehman)
    - Sync the spec file with downstream (vpodzime)