Added an "Other Top-Level Directories" section to "Modules".

Modules.wiki

diff --git a/Modules.wiki b/Modules.wiki
index ab06e99..69f86e7 100644
--- a/Modules.wiki
+++ b/Modules.wiki
@@ -27,8 +27,19 @@
     ** Email sending is handled by this code.
   * *templates*
     ** Melange's HTML templates.
+    ** As of March 2013 the elimination of a "v2" layer of indirection is in progress in this directory.
   * *views* (described below)
 
+==Other Top-Level Directories==
+
+  * *mockup*
+    ** Design assets from past site redesigns (mostly images and HTML).
+  * *scripts*
+    ** First-party Melange code not included in the web application image of Melange.
+  * *tests*
+    ** Tests and test utilities in a directory structure mirroring that of the top-level "app" directory.
+  * *thirdparty*
+    ** Third-party code such as the App Engine SDK.
 
 =Dynamic Modules (How Melange Is Organized During Execution)=