updates CHANGELOG and improves README

CHANGELOG

@@ -5,6 +5,7 @@
         The affected settings are:
             * `durable` was changed from `false` to `true`,
             * `auto_delete` was changed from `true` to `false`.
+    * Adds basic_reject functionality to consumers. A message can be rejected by returning `false` from a callback.
 
 - 2012-05-29
     * Merged PR #46 adding compiler passes for the configuration. Now the parameter classes can be overriden.

README.md

@@ -170,11 +170,11 @@ Here's an example callback:
 
             $isUploadSuccess = someUploadPictureMethod();
             if (!$isUploadSuccess) {
-                
-                // If you upload an image failed due to a temporary error, from the callback can return `false`, 
-                // so RabbitMq did not remove the message from the queue, and moved it to the end of the queue 
-                // (reject & requeue). For any other result of the `execute` method will be removed from the message 
-                // queue as well handled.
+                // If your image upload failed due to a temporary error you can return false
+                // from your callback so the message will be rejected by the consumer and
+                // requeued by RabbitMQ.
+                // Any other value not equal to false will acknowledge the message and remove it
+                // from the queue
                 return false;
             }
         }