Merge pull request #2279 from prutz1311/master

Added support for normalboots.com (#2237)

youtube_dl/extractor/__init__.py

@@ -142,6 +142,7 @@
 from .nhl import NHLIE, NHLVideocenterIE
 from .niconico import NiconicoIE
 from .ninegag import NineGagIE
+from .normalboots import NormalbootsIE
 from .novamov import NovamovIE
 from .nowness import NownessIE
 from .nowvideo import NowVideoIE