message: Make accessing mempool parents and children public
diff: @@ -418,6 +418,8 @@ public:
  };
  typedef std::set<txiter, CompareIteratorByHash> setEntries;
  + const setEntries & GetMemPoolParents(txiter entry) const;
  + const setEntries & GetMemPoolChildren(txiter entry) const;
  private:
  typedef std::map<txiter, setEntries, CompareIteratorByHash> cacheMap;
  @@ -429,8 +431,6 @@ private:
  typedef std::map<txiter, TxLinks, CompareIteratorByHash> txlinksMap;
  txlinksMap mapLinks;
  - const setEntries & GetMemPoolParents(txiter entry) const;
  - const setEntries & GetMemPoolChildren(txiter entry) const;
  void UpdateParent(txiter entry, txiter parent, bool add);
  void UpdateChild(txiter entry, txiter child, bool add);
  