loop over all primary classes looking for a given handle.
* src/RelLib/_Source.py (serialize, unserialize): properly save
and restore marker.
* src/RelLib/_MediaObject.py (serialize, unserialize): properly
save and restore marker.
* src/RelLib/_Place.py (serialize, unserialize): properly save and
restore marker.
* src/RelLib/_Repository.py (serialize, unserialize): properly
save and restore marker.
* src/RelLib/_Event.py (serialize, unserialize): properly save and
restore marker.
svn: r6507
* src/GrampsDb/_ReadGedcom.py: Adapt to new types.
* src/RelLib/_Event.py: Properly set type.
* src/RelLib/_EventRef.py: Properly set type.
* src/RelLib/_Family.py: Properly set type.
* src/RelLib/_Name.py: Properly set type.
* src/RelLib/_Person.py: Properly set type.
* src/RelLib/_PrimaryObject.py: Properly set type.
* src/RelLib/_RepoRef.py: Properly set type.
* src/RelLib/_Repository.py: Properly set type.
* src/RelLib/_Url.py: Properly set type.
svn: r6386
python objects, so that Gramps classes are never pickled.
* Date.py, CalSdn.py: Move to RelLib.
* src/dates/Date_*.py: Use new Date.
* src/plugins/*.py: Use new Date.
* src/GrampsDb/_*.py: Use new Date, new unserialize.
* src/*.py: Use new Date.
svn: r5875
the old Event object.
* src/RelLib/_Event.py: Remove external witnesses altogether.
* src/RelLib/_Witness.py: Make even emptier (needed for upgrade only).
* src/RelLib/__init__.py: Expose Witness (needed for upgrade only).
svn: r5595