[svn] documented debug.foobar and added it to the CHANGES

--HG--
branch : trunk
diff --git a/CHANGES b/CHANGES
index 18b727a..2d34821 100644
--- a/CHANGES
+++ b/CHANGES
@@ -10,6 +10,9 @@
 - debugging system improved, smaller filesize for the cached files.
   Debugging works now well for any module using linecache.
 
+- ``{{ debug() }}`` can now be used to get a list of filters and
+  tags.
+
 - added whitespace management system for the template designer.
 
 - some small bugfixes.