New version - 2.20
    
    - Use unsafe caching for storage for devel/testing VMs (v.podzimek)
    - Require newer version of cryptsetup for LUKS2 tests (vtrefny)
    - Skip nvdimm tests on systems without ndctl (vtrefny)
    - Add Ubuntu 18.04 VM configuration to the vagrant template (vtrefny)
    - Add some missing test dependencies to the vagrant template (vtrefny)
    - Fix how/where the bcache tests are skipped (v.podzimek)
    - Document what the 'misc' directory contains (v.podzimek)
    - Add a Vagrantfile template (v.podzimek)
    - Fix the error message when deleting partition fails (vpodzime)
    - Fix build of plugins by changing linking order (devurandom)
    - Fix how we check zram stats from /sys/block/zram0/stat (vtrefny)
    - lvm-dbus: Fix parsing extra arguments for LVM methods calls (vtrefny)
    - Skip MDTestAddRemove on Debian (vtrefny)
    - Skip NTFS mount test on Debian testing (vtrefny)
    - Skip bcache tests on Debian testing (vtrefny)
    - tests: Try harder to get distribution version (vtrefny)
    - Mark the function stubs as static (v.podzimek)
    - Build the dm plugin without dmraid support on newer RHEL (vtrefny)
    - Fix skipping zram tests on Fedora 27 (vtrefny)
    - kbd: Check for zram module availability in 'bd_kbd_is_tech_avail' (vtrefny)
    - Always build the VDO plugin (vtrefny)
    - Do not require 'dmraid' package if built without dmraid support (vtrefny)
    - Fix licence header in dbus.c (vtrefny)
    - Fix spacing in NEWS.rst (vtrefny)