Move some docs inline, and add deprecation information. To see the list of

Move some docs inline, and add deprecation information. To see the list of

	* glib/gutils.c:
	* glib/gtree.c:
	* glib/gstring.c:
	* glib/gstrfuncs.c:
	* glib/giochannel.c: Move some docs inline, and add deprecation
	information. To see the list of affected functions, grep for
	"Deprecated:".

	* glib/tmpl/strings.sgml:
	* glib/tmpl/string_utils.sgml:
	* glib/tmpl/misc_utils.sgml: Move some docs inline.