Aggressive test timeout to catch hanging servers

test/test_download.py

@@ -26,6 +26,7 @@ cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
 proxy_handler = compat_urllib_request.ProxyHandler()
 opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
 compat_urllib_request.install_opener(opener)
+socket.setdefaulttimeout(10)
 
 def _try_rm(filename):
     """ Remove a file if it exists """