Clean up the code so < 0 == end wasn't just a side effect, remove most of

Clean up the code so < 0 == end wasn't just a side effect, remove most of

Tue Feb 26 22:22:37 2002  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkbox.c (gtk_box_reorder_child): Clean up
	the code so < 0 == end wasn't just a side effect,
	remove most of the manual linked list manipulation
	code in favor of g_list_* functions.

Tue Feb 26 22:01:59 2002  Owen Taylor  <otaylor@redhat.com>

	* gtk/tmpl/gtkbox.sgml: Fix docs to correspond to the code -
	negative @position indicates the end of the list.