Fixed an issue with flowchart rendering. Remember to render html, securityLevel='loose' must be set by the siteConfig. The default securityLevel as of now is 'strict'. This causes html to be url encoded.

src/diagrams/class/classDb.js

@@ -3,6 +3,7 @@ import { logger } from '../../logger';
 import { getConfig } from '../../config';
 import common from '../common/common';
 import utils from '../../utils';
+import mermaidAPI from '../../mermaidAPI';
 
 const MERMAID_DOM_ID_PREFIX = 'classid-';
 
@@ -14,6 +15,10 @@ let classCounter = 0;
 
 let funs = [];
 
+export const parseDirective = function(statement, context, type) {
+  mermaidAPI.parseDirective(statement, context, type);
+};
+
 const splitClassNameAndType = function(id) {
   let genericType = '';
   let className = id;
@@ -288,6 +293,7 @@ const setupToolTips = function(element) {
 funs.push(setupToolTips);
 
 export default {
+  parseDirective,
   addClass,
   bindFunctions,
   clear,