* src/GrampsDb/_GrampsXMLDB.py (load_from): Add method.
* src/GrampsDb/_GrampsGEDDB.py (load_from): Add method.
* src/GrampsDb/_GrampsDbBase.py (load_from): Add method.
* src/GrampsDb/_WriteGrdb.py: Use db_copy.
* src/GrampsDb/_DbUtils.py (db_copy): Add function.
* src/ViewManager.py: Save as support.
* src/DataViews/_MapView.py (enable_debug): Set to False to be
able to see the output besides MapView.
svn: r6604
* src/GrampsDb/_GrampsBSDDB.py (load): Use common undodb
methods; reset undo history.
* src/GrampsDb/_GrampsInMemDB.py (load): Use common undodb
methods; reset undo history.
* src/GrampsDb/_GrampsXMLDB.py: Minor fix.
* src/GrampsDb/_GrampsGEDDB.py: Minor fix.
* src/GrampsDb/_GrampsDbBase.py: Undo history support.
* src/UndoHistory.py: Fixes and additions.
* src/ViewManager.py (post_load): Re-set undo/redo labels.
svn: r6569
add support for no families or parents
* src/GrampsDb/_GrampsBSDDB.py: txn handling for get_handles
* src/GrampsDb/_GrampsDbBase.py: txn handling for get_handles
* src/GrampsDb/_GrampsGEDDB.py: txn handling for get_handles
* src/GrampsDb/_GrampsXMLDb.py: txn handling for get_handles
svn: r5707