Add some documentation, remove some to-do comments, and update the to-do list.

Makefile.am

@@ -197,14 +197,12 @@ pkgpython_PYTHON = data/tools/wesnoth/wmltools.py \
     data/tools/wesnoth/__init__.py
 endif
 
-# *** Not yet covered by scons recipe
 update-po:
 	@cd po && make $@ || exit $?
 if MANUALUPDATE
 	@cd doc/manual && make update-po || exit $?
 endif
 
-# *** Not yet covered by scons recipe
 if PO4AUPDATE
 update-po4a:
 	@cd po && make update-po4a || exit $?

SConstruct

@@ -11,8 +11,8 @@
 # To do (list is now exhaustive):
 #
 # 1. Dummy locales
-# 2. Translations handling other than installation (pot-update).
-# 3. Making binary and data-only distribution tarballs
+# 2. Making binary and data-only distribution tarballs
+# 3. Making code dpenency graph
 
 import os, sys, commands, shutil, sets, re
 from glob import glob
@@ -82,6 +82,7 @@ The following special build targets
     install-wesnothd = install the Wesnoth multiplayer server.
     install-campaignd = install the Wesnoth campaign server.
     uninstall = uninstall all executables, tools, and servers.
+    pot-update = perform gettext message catalog generation
     dist = make distribution tarball as wesnoth.tar.bz2 (*).
     data-dist = make data tarball as wesnoth-data.tar.bz2 (*).
     binary-dist = make data tarball as wesnoth-binaries.tar.bz2 (*).

configure.ac

@@ -597,7 +597,6 @@ int main (int argc, char **argv)
     LIBS="$ac_save_LIBS"
 fi
 
-# *** Not yet covered by scons recipe
 # po4a
 
 AC_PATH_PROGS([PO4A], [po4a], [none])
@@ -934,7 +933,6 @@ AM_CONDITIONAL([BOOST_AUTO_TEST], [test x"$boost_auto_test" = xyes])
 #######################################################################
 # Tune gettext stuff for our needs                                    #
 #######################################################################
-# *** Not yet covered by scons recipe
 
 case $srcdir in
 /*) topdir=$srcdir ;;