2003-01-06  Matthias Clasen  <maclas@gmx.de>

	Implement a utility function proposed in #102534:

	* gtk/gtktextbtree.h:
	* gtk/gtktextbtree.c (_gtk_text_btree_select_range): New function.
	(_gtk_text_btree_place_cursor): Now a simple wrapper around
	_gtk_text_btree_select_range().

	* gtk/gtktextbuffer.h:
	* gtk/gtktextbuffer.c (gtk_text_buffer_select_range): New function.
	(gtk_text_buffer_place_cursor): Now a simple wrapper around
	gtk_text_buffer_select_range().