Fixed parsers to use the correct type name in close_directive

Added directive support to pie
(Refactored pie parsing to be a bit more clear)
Added more unit tests to pie

src/diagrams/pie/pieRenderer.js

@@ -153,7 +153,7 @@ export const draw = (txt, id) => {
       });
   } catch (e) {
     logger.error('Error while rendering info diagram');
-    logger.error(e.message);
+    logger.error(e);
   }
 };