* nautilus-widgets/nautilus-preferences-item.c:
(preferences_item_construct),
(preferences_item_create_editable_string),
(preferences_item_create_font_family),
(preferences_item_create_icon_theme),
(preferences_item_create_toolbar_icon_theme),
(text_item_changed_callback), (editable_string_changed_callback):
* nautilus-widgets/nautilus-preferences-item.h:
New type of preference, EDITABLE_STRING.

* libnautilus-extensions/nautilus-global-preferences.c:
(global_preferences_create_dialog):
Add a new pane, navigation pane.

Add support for manually keying in a home page.  Needs some more
work to work better.

* nautilus-widgets/Makefile.am:
* nautilus-widgets/nautilus-caption.c:
(nautilus_caption_initialize_class), (nautilus_caption_initialize),
(nautilus_caption_destroy), (nautilus_caption_new),
(nautilus_caption_set_title_label),
(nautilus_caption_get_title_label), (nautilus_caption_set_child):
* nautilus-widgets/nautilus-caption.h:
New class.  Common stuff for caption widgets.

* nautilus-widgets/nautilus-string-picker.c:
(nautilus_string_picker_initialize_class),
(nautilus_string_picker_initialize), (entry_changed_callback),
(nautilus_string_picker_set_string_list):
* nautilus-widgets/nautilus-string-picker.h:
Subclass from caption class.

* nautilus-widgets/nautilus-text-caption.h:
* nautilus-widgets/nautilus-text-caption.c:
(nautilus_text_caption_initialize_class),
(nautilus_text_caption_initialize),
(nautilus_text_caption_destroy), (entry_changed_callback),
(nautilus_text_caption_new), (nautilus_text_caption_get_text),
(nautilus_text_caption_set_text):
New caption sublcass that manages an text widget.

* nautilus-widgets/test-nautilus-widgets.c: (main),
(test_string_picker), (test_text_caption),
(string_picker_changed_callback), (text_caption_changed_callback):
Update for new class and caption changes.