Do not batch responses from image loader threads

Don't wait to batch image loads, just send 'em back as fast as
possible

Change-Id: I4a97d938c38157d4b534580a037fa950c89b1de9
GitHub: https://github.com/wikimedia/apps-android-commons/pull/4

commons/src/main/java/org/wikimedia/commons/CommonsApplication.java

@@ -138,6 +138,7 @@ public class CommonsApplication extends Application {
                     imageCache.put(key, bitmap);
                 }
             });
+            imageLoader.setBatchedResponseDelay(0);
         }
         return imageLoader;
     }