2006-04-19  Morten Welinder  <terra@gnome.org>

	* src/commands.c (cmd_paste_copy_impl, cmd_autofill_undo,
	cmd_copyrel_undo, cmd_text_to_columns_impl, cmd_paste_cut_redo,
	cmd_paste_cut_undo): Simplify using select_range.
	(cmd_set_text_undo, cmd_set_text_redo): Call select_range.
	(cmd_clear_undo): Simplify using select_selection.
	(cmd_clear_redo, cmd_format_redo, cmd_format_undo): Call
	select_selection.
	(select_range, select_selection): New functions.