message: Fixed HashTable<>::iterator, const_iterator (skip deleted items at the beginning).
diff: @@ -127,7 +127,10 @@ public:
  typedef typename Base::iterator base;
  public:
  - iterator(const base &it) : base(it) { }
  + iterator(const base &it) : base(it)
  + {
  + while (base::good() && (*this)->next == -2) { base::next(); }
  + }
  iterator &operator++()
  {
  @@ -142,7 +145,10 @@ public:
  typedef typename Base::const_iterator base;
  public:
  - const_iterator(const base &it) : base(it) { }
  + const_iterator(const base &it) : base(it)
  + {
  + while (base::good() && (*this)->next == -2) { base::next(); }
  + }
  const_iterator &operator++()
  {
  