Update bower dependencies, fix redraw regression

- In Mithril, `finally` has been removed from promise objects as it is not part of the ES spec. See https://gist.github.com/jish/e9bcd75e391a2b21206b for info on the substitute.
- Fix a regression introduced in e5a7013 which broke some redraws

js/lib/helpers/listItems.js

@@ -34,6 +34,10 @@ export default function listItems(items) {
     const active = item.component && item.component.isActive && item.component.isActive(item.props);
     const className = item.props ? item.props.itemClassName : item.itemClassName;
 
+    if (isListItem) {
+      item.props.key = item.itemName;
+    }
+
     return [
       isListItem
         ? item