upgraded to express 3.x, converted jade templates, and worked out array notation for articles/exercises

test/views/users/new.jade

@@ -1,14 +1,16 @@
-h1 New User
+extends ../layout
+block content
+  h1 New User
 
-form(method="POST", action="/users")
-  p
-    label(for="username") Username<br />
-    input#username(name="username")
-  p
-    label(for="name") Name<br />
-    input#name(name="name")
-  p
-    label(for="password") Password<br />
-    input#password(type="password", name="password")
-  p
-    input(type="submit", value="Create")
+  form(method="POST", action="/users")
+    p
+      label(for="username") Username<br />
+      input#username(name="username")
+    p
+      label(for="name") Name<br />
+      input#name(name="name")
+    p
+      label(for="password") Password<br />
+      input#password(type="password", name="password")
+    p
+      input(type="submit", value="Create")