-Version 0.3 (2014-06-??)
+Version 0.5 (2017-04-??)
+
+ Use parsimonious instead of grako.
+
+Version 0.4 (2016-07-11)
+
+ Use grako instead of PLY to compile EBNF to Python.
+
+Version 0.3 (2014-06-22)
Allow '&&', '||', ' AND ', ' and ', ' OR ', ' or ', 'NOT ' and 'not '.