[PATCH] downloads: initialize downloader from sources.js earlier

[Kevin Bullock]

# HG changeset patch
# User Kevin Bullock <kbullock+mercurial at ringworld.org>
# Date 1494816447 18000
#      Sun May 14 21:47:27 2017 -0500
# Node ID 4b88b3c4fc807a3d1e9a98b670e2f710796e73c1
# Parent  c65b81353b8f9e370dc329e0a7ba1c2441d215a8
downloads: initialize downloader from sources.js earlier

c65b81353b8f inadvertently broke the /downloads page by moving the call
to Downloader.init(sources) later in the rendering process, after the
downloads list has already been written. As a stopgap, we introduce an
earlier call to initialize the versions before attempting to render the
list. Future changes will move this inline script into an onload
function.

diff --git a/templates/downloads/index.html b/templates/downloads/index.html
--- a/templates/downloads/index.html
+++ b/templates/downloads/index.html
@@ -4,6 +4,7 @@
 
     <h1>Mercurial downloads</h1>
     <script language="javascript">
+        Downloader.init(sources);
         var versions = Downloader.versions();
         var more = Downloader.maxversions &&
                    versions.length > Downloader.maxversions;