We want the browser extension only for the latest version

wiki/src/blueprint/bootstrapping/browser_extension.mdwn

@@ -16,6 +16,12 @@ Objectives
 This would fix the main stumbling block for Tails verification (and thus
 installation) for the vast majority of users.
 
+No objectives
+=============
+
+  - Download ISO images not for the latest release version.
+  - Verify ISO images downloaded from nightly.tails.boum.org.
+
 Security considerations
 =======================
 
@@ -85,7 +91,7 @@ Other desirable features
 ========================
 
   - Be able to use that extension, once installed to verify ISO images
-    downloaded using BitTorrent or nightly.tails.boum.org.
+    downloaded using BitTorrent.
   - Be able to use that extension to verify other ISO images, testing images,
     older ISO images, etc. In that case the user would be warned about the
     deprectated or experimental status of the ISO image.