* src/ReadXML.py, src/ReadGedcom.py: Register as native formats
to prevent loading twice on File->Open.
* src/data/gramps.schemas: Add keys for last import and export dirs.
* src/GrampsCfg.py (get_last_import_dir, save_last_import_dir,
get_last_export_dir, save_last_export_dir): Add functions.
* src/Exportder.py (suggest_filename): Try last export and last
import folders before falling back to Home; (save): Save export folder.
* src/Utils.py (get_new_filename): Add optional folder argument.
* src/DbPrompter.py (ExistingDbPrompter.chooser): Only add
importers for non-native formats, the rest is already taken care of;
Try last file, last import, last export, then home folders;
(ImportDbPrompter.chooser): Save import folder; Try last import,
last file, last export, then home folders.
(NewNativeDbPrompter): Try last file, last import, last export folders,
then fall back to home.
svn: r3493
(handle_source): Refer to handle, not the object;
(parse_source): Use gramps id (not handle) to form the title.
* src/GrampsDbBase.py (get_person_from_handle): Typo;
(find_event_from_handle): Correctly create new event if not found.
* src/Sources.py (draw): Correctly sort, use gramps id when
displaying sources; (redraw): Use gramps id in the list view.
svn: r3461
* src/ReadGedcom.py: move up from plugins directory
* src/gedcomimport.glade: move up from plugins directory
* src/gedcomexport.glade: move up from plugins directory
svn: r3310
