planet.wikimedia.org -- fix https redirects to http

Currently https://planet.wikimedia.org redirects to
http://planet.wikimedia.org. This patch removes that
redirection. Also three more redirections (atom.xml,
rss10.xml, rss20.xml) are created for HTTPS connections.

So after this patch, both http and https will work.

Bug: 68554
Change-Id: Idb11165b42f14ab5a2511683a70a602649cd2263
Merge "planet.wikimedia.org -- fix https redirects to http" into production