Bug 1823265 - Switch nightly links to Bills website for now. r=me

src/dev/nightly.en.html

@@ -23,11 +23,12 @@
   <a href="https://developer.mozilla.org/en-US/docs/Mozilla/QA/Bug_writing_guidelines">report
   bugs</a> for them.
 </div>
-<p>You can find the latest nightly 2.53.x builds <a
-  href="[% develdownloadbase %]/">here</a>.
+<p>You can find the latest nightly 2.53.x build <a
+  href="https://www.wg9s.com/seamonkey/nightly/comm-253-latest/">here</a>.
 <br>
-Most 2.53.x language packs are available at <a
-  href="[% develdownloadlang %]/">langpacks</a>.</p>
+  The 2.53.x language packs for the nightly build are available at <a
+  href="https://www.wg9s.com/seamonkey/nightly/latest-253-langpacks/">langpacks</a>.
+</p>
 <br>
 <p>These builds and language packs are provided by <a
   href="http://www.wg9s.com/">Bill Gianopoulos</a>.</p>