Removed memory leak, it's ok now

maca_common/include/LimitedStack.hpp

@@ -57,6 +57,9 @@ class LimitedStack
       lastElementIndex = 0;
 
     present[data[lastElementIndex]]--;
+    if (present[data[lastElementIndex]] <= 0)
+      present.erase(present.find(data[lastElementIndex]));
+
     data[lastElementIndex] = elem;
     present[data[lastElementIndex]]++;
   }