- Add ability to control iterator class of ArrayObject
- Implement option to make CachingIterator cache all read elements
- Implement ArrayAccess to CachingIterator to access cached elements
- Update docu
- Update tests
- bugfix #27063
- bugfix #27929
- bugfix #28099
- bugfix #28125
# The amount of code is needed to solve the return by reference problem.
# dual_it and derived also need their own iterator handlers to be able
# to return by reference.