2003-01-27  Paolo Maggi <paolo.maggi@polito.it>

	* *.c:
	* dialogs/*.c: make sure to include <config.h>

	* dialogs/gedit-preferences-dialog.c: remove COLUMN_INDEX
	(add_enc_to_list): comment unused code
	(create_encodings_treeview_model): mem leak
	(gedit_preferences_dialog_encodings_treeview_selection_changed):
	manage the case in which selected == FALSE
	(gedit_preferences_dialog_up_enc_button_clicked): code cleanup
	(gedit_preferences_dialog_down_enc_button_clicked): ditto
	(gedit_preferences_dialog_add_encoding): remove COLUMN_INDEX column
	(gedit_preferences_dialog_add_encodings): unselect all items