Add timeout for Http request

F-Droid/src/org/fdroid/fdroid/net/HttpDownloader.java

@@ -83,6 +83,8 @@ public class HttpDownloader extends Downloader {
         } else {
             connection = (HttpURLConnection) sourceUrl.openConnection();
         }
+        connection.setConnectTimeout(10000);
+        connection.setReadTimeout(40000);
     }
 
     protected void doDownload() throws IOException, InterruptedException {