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Features
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- Added translation to XLS export files.
- Added creator, last modifier and modification date metadata to
objects.
Bugfixes
--------
- When two users are exporting at the same time this could end in
broken export files.
- On the person edit form:
- the the last modification dates of the entries (postal address,
phone number etc.) where the one of the person.
- the keywords field was not correctly implemented: it was always
marked as changed so the a new last modification date on the
person was set, even when nothing has been changed.
- editing a field of an entry did not change the modification date
of this entry but of the person.