[gstreamermm] configure.ac: Restore accidentally deleted comment text.

[José Alburquerque <jaalburqu src gnome org>]

commit a7f10729a9c292f6aa5a955075e5b62198ee8eac
Author: José Alburquerque <jaalburqu svn gnome org>
Date:   Mon Apr 18 01:32:29 2011 -0400

    configure.ac: Restore accidentally deleted comment text.
    
    	* configure.ac:

 ChangeLog    |    6 ++++++
 configure.ac |   12 +++++++++++-
 2 files changed, 17 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 8b37787..18e3e68 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2011-04-18  José Alburquerque  <jaalburqu svn gnome org>
 
+	configure.ac: Restore accidentally deleted comment text.
+
+	* configure.ac:
+
+2011-04-18  José Alburquerque  <jaalburqu svn gnome org>
+
 	Plugins: Wrap new core plugins.
 
 	* configure.ac: Modify the format of the plugin definitions to include
diff --git a/configure.ac b/configure.ac
index 5247aa2..8951e0c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -78,7 +78,17 @@ MM_ARG_WITH_TAGFILE_DOC([pangomm-1.4.tag], [pangomm-1.4])
 
 # To add a plugin, add the plugin definition, in the form of
 # "hgfilebasename|plugin|CppClassName" to the space-separated list of
-# definitions below.  (Where "hgfilebasename" is the basename of the .hg file
+# definitions below.  (Where "hgfilebasename" is the basename of the .hg file,
+# "plugin" is the plugin name as recognized by gst-inspect and "CppClassName"
+# is the desired name of the C++ class.)
+#
+# Also add the target .hg file name to the plugins_hg variable in the
+# gstreamer/src/fileslist.am.  (That must be the same as "CppClassName" - all
+# in lowercase with a .hg extension).
+#
+# TODO: Include appsink and appsrc plug-ins in list below if they indeed are
+# plug-ins (see gst-plugins-base docs for details) and when they don't cause
+# gstreamermm initialization errors.
 
 AC_SUBST([GSTREAMERMM_PLUGIN_DEFS], ["\
 adder|adder|Adder \