Moves default actions to be part of the rules

CHANGES

@@ -1,6 +1,16 @@
 v3.x.y - YYYY-MMM-DD (to be released)
--------------------------------------
+------------------------------------- 
 
+  - Using std::shared_ptr instead of generates its own references counters
+    for Rules and related.
+    [@zimmerle]
+  - Better handle shared_pointers on messages aiming for better performance.
+    [@zimmerle]
+  - Better handle memory usage on transformations aiming for better
+    performance.
+    [@zimmerle]
+  - Coding refactoring on the Rule class. The Rule class is now refactored
+    into RuleWithOperator, RuleWithActions, and RuleUnconditional.
   - Fix: FILES variable does not use multipart part name for key
     [Issue #2377 - @martinhsv]
   - Regex key selection should not be case-sensitive