[myvidster] Added support for Myvidster

youtube_dl/extractor/__init__.py

@@ -245,6 +245,7 @@ from .muzu import MuzuTVIE
 from .myspace import MySpaceIE, MySpaceAlbumIE
 from .myspass import MySpassIE
 from .myvideo import MyVideoIE
+from .myvidster import MyVidsterIE
 from .naver import NaverIE
 from .nba import NBAIE
 from .nbc import (