Fix routing so both plain and .html routes work

src/jade/includes/_header.jade

@@ -14,7 +14,7 @@
     .divider.bottom
         .login
             span.name
-            a(href="/login") Login
+            a(href="/login/") Login
 
     .navBar
         a(data-page="home", href="/")

src/jade/templates/login_page.jade

@@ -51,8 +51,9 @@
     .two-thirds-content.hideable.hidden.fetching-token
         img.float-right(src="/images/github-login-large.png")
         h1 Completing log in...
-        p.
-            Hang on just a second while we finish logging you in...
+        p Hang on just a second while we finish logging you in...
+        .actions
+            img(src="/images/wait.gif")
 
         .clear