Revert "; * etc/TODO: Move elpa.gnu.org items to the end."

This reverts commit d73f0e9.

These items are a priority for the project and should be before other,
less prioritized items, according to a private discussion with project
co-maintainer Eli Zaretskii <eliz@gnu.org>.

etc/TODO

@@ -69,12 +69,12 @@ which ideally should generate the same byte-code as
 
 * Things that were planned for Emacs-24
 
-** Concurrency
+** concurrency
 Including it as an "experimental" compile-time option sounds good.  Of
 course there might still be big questions around "which form of
 concurrency" we'll want.
 
-** Better support for dynamic embedded graphics
+** better support for dynamic embedded graphics
 I like this idea (my mpc.el code could use it for the volume widget),
 though I wonder if the resulting efficiency will be sufficient.
 
@@ -104,6 +104,23 @@ It would make it easy to add (and remove) mappings like
 "uppercase -> lowercase", "[fringe KEY...] -> [KEY]",
 "H-FOO -> M-FOO", "C-x C-y FOO -> H-FOO", ...
 
+* Things related to elpa.gnu.org.
+
+** Move idlwave to elpa.gnu.org
+Need to sync up the Emacs and external versions.
+See <https://lists.gnu.org/r/emacs-devel/2014-07/msg00008.html>
+<https://debbugs.gnu.org/39992>
+
+** Move Org mode to elpa.gnu.org
+See <https://lists.gnu.org/r/emacs-devel/2014-08/msg00300.html>
+<https://lists.gnu.org/r/emacs-devel/2014-11/msg00257.html>
+
+** Move verilog-mode to elpa.gnu.org
+See <https://lists.gnu.org/r/emacs-devel/2015-02/msg01180.html>
+
+** Move vhdl-mode to elpa.gnu.org
+See <https://lists.gnu.org/r/emacs-devel/2015-02/msg01180.html>
+
 * Simple tasks
 These don't require much Emacs knowledge and are suitable for anyone
 from beginners to experts.
@@ -1743,26 +1760,6 @@ Add a standard button-class named "link", and make all other link-like
 button classes inherit from it.  Set the default face of the "link"
 button class to the standard "link" face.
 
-* Things related to elpa.gnu.org.
-
-We need to figure out how to best include GNU ELPA packages in the
-Emacs tarball before doing any of the items below.
-
-** Move idlwave to elpa.gnu.org
-Need to sync up the Emacs and external versions.
-See <https://lists.gnu.org/r/emacs-devel/2014-07/msg00008.html>
-<https://debbugs.gnu.org/39992>
-
-** Move Org mode to elpa.gnu.org
-See <https://lists.gnu.org/r/emacs-devel/2014-08/msg00300.html>
-<https://lists.gnu.org/r/emacs-devel/2014-11/msg00257.html>
-
-** Move verilog-mode to elpa.gnu.org
-See <https://lists.gnu.org/r/emacs-devel/2015-02/msg01180.html>
-
-** Move vhdl-mode to elpa.gnu.org
-See <https://lists.gnu.org/r/emacs-devel/2015-02/msg01180.html>
-
 * Wishlist items
 
 ** Maybe replace etags.c with a Lisp implementation.