[auengine] Rename to official capitalization

youtube_dl/extractor/__init__.py

@@ -1,7 +1,7 @@
 
 from .ard import ARDIE
 from .arte import ArteTvIE
-from .auengine import AuengineIE
+from .auengine import AUEngineIE
 from .bandcamp import BandcampIE
 from .bliptv import BlipTVIE, BlipTVUserIE
 from .breakcom import BreakIE
@@ -139,7 +139,7 @@ def gen_extractors():
         CSpanIE(),
         WimpIE(),
         HotNewHipHopIE(),
-        AuengineIE(),
+        AUEngineIE(),
         GenericIE()
     ]
 

youtube_dl/extractor/auengine.py

@@ -7,7 +7,7 @@ from ..utils import (
     compat_urllib_parse_urlparse,
 )
 
-class AuengineIE(InfoExtractor):
+class AUEngineIE(InfoExtractor):
     _VALID_URL = r'(?:http://)?(?:www\.)?auengine\.com/embed.php\?.*?file=([^&]+).*?'
 
     def _real_extract(self, url):