Merge pull request #3167 from Schnouki/motherless

* mother/motherless:
  [Motherless] Add new extractor

youtube_dl/extractor/__init__.py

@@ -170,6 +170,7 @@ from .mpora import MporaIE
 from .mofosex import MofosexIE
 from .mooshare import MooshareIE
 from .morningstar import MorningstarIE
+from .motherless import MotherlessIE
 from .motorsport import MotorsportIE
 from .moviezine import MoviezineIE
 from .movshare import MovShareIE