++++++++++++++++
+ Update code to work with Lark 0.6.6 (see 71)
+ New end_comment option for pprint - Add a comment with the block type at each closing END statement e.g. END MAP
(see request `69 <https://github.com/geographika/mappyfile/issues/69>`_)
+ Add ``**kwargs`` to main API to allow greater flexibility with plugins
+ Fix DeprecationWarnings relating to Python 3.7.2 (thanks tigerfoot for the report)
+ Tested use with new jsonschema 3.0.0 release