* src/MarkupText.py (MarkupBuffer.set_text): better unicode encoding.
* src/Editors/_EditPlace.py: source code encoding comment removed;
EditPlace._validate_coordinate: proper unicode coding;
EditPlace._setup_fields: longitude and latitude entries moved out to
glade.
* src/Editors/_EditNote.py (EditNote._local_init): redundant method
call removed.
* src/GrampsWidgets.py: enable custom widget support from glade;
MonitoredEntry.connect: enable support for custom data for signal.
* src/glade/gramps.glade (place_editor): include ValidatableMaskedEntry
for longitude and latitude entries.
* src/ManagedWindow.py (ManagedWindow.show): replace window.show() with
window.show_all().
svn: r8311