[skip travis] renaming

to avoid using same folder when using pip install for example

test/test_http.py

@@ -9,8 +9,8 @@ import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 from test.helper import http_server_port
-from youtube_dl import YoutubeDL
-from youtube_dl.compat import compat_http_server, compat_urllib_request
+from youtube_dlc import YoutubeDL
+from youtube_dlc.compat import compat_http_server, compat_urllib_request
 import ssl
 import threading