add 'all changes' page.

input/index.md

 <!--%
 printRecentMenu(10)
 %-->
+
+[Show all updates](updates.html).

input/updates.md

+title: Updates
+---
+
+This is a list of all pages with an associated date, ordered from newest to oldest.
+You can use it to keep track of what I've been doing here.
+
+<!--%
+printRecentMenu(0)
+%-->

macros.py

     return lastyear
 
 def printRecentMenu(count = 5):
-    posts = [p for p in pages if "date" in p]
+    posts = [p for p in pages if "date" in p and p.lang == "en"]
     posts.sort(key=lambda p: p.get("update", p.get("date")), reverse=True)
-    for p in posts[0:count]:
+    if count > 0:
+        posts = posts[0:count]
+    for p in posts:
         printMenuItem(p, False, False, False, True, "0", "", False)
 
 def printBlogMenu():