ENH: tour.init() has refresh argument now.

misc/yaml_to_json.py

 #!/usr/bin/env python3
 
 import sys
-import yaml
 import json
 
+import yaml
+
 with open(sys.argv[1], 'r') as infile:
     print(json.dumps(yaml.load(infile)))

src/core/js/tour.js

@@ -691,9 +691,12 @@ var tour = new function() {
     /**
      * Initialize the tour.
      */
-    this.init = async function _in() {
+    this.init = async function _in(refresh=false) {
         try {
             tour.debug("initializing tour module");
+            if (refresh) {
+                localStorage.removeItem("tour_state");
+            }
             await tour.load_tour();
             tour.post_init();
         } catch (error) {