- Only import ROOT_PATH if needed (bcl)
    - Add early keyword to setUpBootLoader (#1086811) (bcl)
    - Only log a warning about labeling if something is wrong (#1075136) (amulhern)
    - When adding an md array, allow adding incomplete arrays (#1090009) (amulhern)
    - Add a flag to control whether a degraded md raid array is used (#1090009)
      (amulhern)
    - Remove preferLeaves parameter from getDeviceByPath() (amulhern)
    - Factor out commonalities among getDevice[s|]By* methods. (amulhern)
    - Omit special check for md devices in addUdevDevice(). (amulhern)
    - Remove unused 'slaves' variable. (amulhern)
    - Move down or remove assignment to device in add* methods. (amulhern)
    - Move DevicelibsTestCase up to the top level of the testing directory.
      (amulhern)
    - Accept None for btrfs raid levels (#1109195) (amulhern)
    - Add a test for a btrfs error associated with small devices (#1109195)
      (amulhern)