+++++
**Bugfixes**
- Fixed ``many`` faulty computation in cases where ``upper == lower > 1``. This
case is not very common, but it could occurs.
- Fixed missing deserialization for ``EDate`` datatype. The missing method on
resulted in a bad ``str`` object conversion leading to an exception as the
a ``datetime`` object was expected instead of a ``str``.
**Miscellaneous**
- Improve ``many`` derived attribute computation, resulting in performance
improvements.
- Add performance improvement tweaks.
- Move ``dispatch`` from ``pyecore.dispatch`` to ``pyecore.utils``