Add NEWS entry pointing to ORG-NEWS.

Delete non-Emacs-24 specific items from ORG-NEWS (since standalone Org
mode has its own NEWS, these are not necessary).

etc/NEWS

@@ -657,7 +657,7 @@ by default.
 (Its name is misleading, since it has nothing to do with MIME
 attachments.)  The old name is now an obsolete alias to the new name.
 
-** MH-E has been upgraded to MH-E version 8.3.1.
+** MH-E has been updated to MH-E version 8.3.1.
 See MH-E-NEWS for details.
 
 ** Modula-2 mode provides auto-indentation.
@@ -669,6 +669,9 @@ Completion is now performed via `completion-at-point', bound to C-M-i
 or M-TAB.  If `nxml-bind-meta-tab-to-complete-flag' is non-nil (the
 default), this performs tag completion.
 
+** Org mode has been updated to version 7.8.09.
+See ORG-NEWS for details.
+
 ** Prolog mode has been completely revamped, with lots of additional
 functionality such as more intelligent indentation, electricity,
 support for more variants, including Mercury, and a lot more.

etc/ORG-NEWS

@@ -7,24 +7,6 @@ Please send Org bug reports to emacs-orgmode@gnu.org.
 
 * Incompatible changes
 
-** Emacs 21 support has been dropped
-   :PROPERTIES:
-   :OrgVersion:  7.01
-   :END:
-
-   Do not use Org mode 7.xx with Emacs 21, use [[http://orgmode.org/org-6.36c.zip][version 6.36c]] instead.
-
-** XEmacs support requires the XEmacs development version
-   :PROPERTIES:
-   :OrgVersion:  7.01
-   :END:
-
-   To use Org mode 7.xx with XEmacs, you need to run the developer
-   version of XEmacs.  We were about to drop XEmacs support entirely,
-   but Michael Sperber stepped in and made changes to XEmacs that made
-   it easier to keep the support.  Thanks to Michael for this
-   last-minute save.
-
 ** New keys for TODO sparse trees
    :PROPERTIES:
    :OrgVersion:  7.01
@@ -947,6 +929,7 @@ to mean anything.
     by viewing from the agenda.
 
     This was a request by Matt Lundin.
+
 * License
 
 This file is part of GNU Emacs.