+2007-06-13 Bo Peng <ben.bob@gmail.com>
+ * format incremented to 273: add --Separator-- environment to
+ separate consecutive environments
+
+2007-06-13 Bo Peng <bpeng@lyx.org>
+ * format incremented to 272: convert listings to ERT because
+ earlier versions of lyx can not handle unrecognizable
+ listings parameters.
+