* nautilus-widgets/nautilus-string-picker.c,
* nautilus-widgets/nautilus-string-picker.h:
New widget to pick a string from a list.

* nautilus-widgets/test-nautilus-preferences.c:
New test program.  Test prefrences things.

* nautilus-widgets/test-nautilus-widgets.c:
Remove preference tests.  Test only non preference widgetry.

* nautilus-widgets/Makefile.am,
* nautilus-widgets/.cvsignore:
Add test-nautilus-preferences.