- Branch transifex for the f21-branch (#1151750) (vpodzime)
    - Remove unused import introduced by porting patches (vpodzime)
    - Allow specifying thin pool profiles (vpodzime)
    - Remove tests for the sanityCheck (vpodzime)
    - Move _verifyLUKSDevicesHaveKey and its exception to anaconda (vpodzime)
    - Remove sanityCheck functions from blivet sources (vpodzime)
    - Allow specifying minimum entropy when creating LUKS (vpodzime)
    - Allow user code provide callbacks for various actions/events (vpodzime)
    - Allow user code creating free space snapshot (vpodzime)
    - Update tests to bring into line w/ previous commit (#1150147) (amulhern)
    - Abstract ContainerDevice member format check into a method (#1150147)
      (amulhern)
    - Register DeviceFormat class (#1150147) (amulhern)
    - Don't append btrfs mount options to None (#1150872) (dshea)
    - Convert int to str before passing it to run_program (#1151129) (amulhern)
    - Avoid unneccesarily tripping raid-level member count checks. (dlehman)
    - Allow toggling encryption of raid container members. (#1148373) (dlehman)
    - Organize installer block device name blacklist. (#1148923) (dlehman)