Avoid some warnings in demo

demo/reagentdemo/news.cljs

@@ -5,10 +5,10 @@
             [reagentdemo.common :as common :refer [demo-component]]
             [reagentdemo.news.anyargs :as anyargs]
             [reagentdemo.news.async :as async]
-            [reagentdemo.news.undo-demo :as undo-demo]))
+            [reagentdemo.news.undodemo :as undodemo]))
 
 (defn main []
   [:div
    [anyargs/main {:summary true}]
    [async/main {:summary true}]
-   [undo-demo/main {:summary true}]])
+   [undodemo/main {:summary true}]])

demo/reagentdemo/news/undodemo.cljs

@@ -1,4 +1,4 @@
-(ns reagentdemo.news.undo-demo
+(ns reagentdemo.news.undodemo
   (:require [reagent.core :as reagent :refer [atom]]
             [reagent.debug :refer-macros [dbg println]]
             [reagentdemo.syntax :refer-macros [get-source]]
@@ -6,7 +6,7 @@
             [reagentdemo.common :as common :refer [demo-component]]
             [todomvc :as todomvc]))
 
-(def funmap (-> "reagentdemo/news/undo-demo.cljs" get-source common/fun-map))
+(def funmap (-> ::this get-source common/fun-map))
 (def src-for (partial common/src-for funmap))
 
 (def state todomvc/todos)

demo/reagentdemo/page.cljs

@@ -77,7 +77,8 @@
                         (.preventDefault e)
                         (reset! page href)
                         (reagent/next-tick
-                         #(set! (.-scrollTop (.-body js/document)) 0)))
+                         #(set! (.-scrollTop (.-documentElement js/document))
+                                0)))
                       identity))
      child]))
 
@@ -89,7 +90,6 @@
 (defn title [name]
   (when (= @title-atom "")
     (if reagent/is-client
-      (let [title (aget (.getElementsByTagName js/document "title") 0)]
-        (set! (.-innerHTML title) name)))
+      (set! (.-title js/document) name))
     (reset! title-atom name))
   [:div])