Redirect https traffic from old metrics sites to wikimetrics

The used certificate is reused per
  https://rt.wikimedia.org/Ticket/Display.html?id=7352#txn-173783

Change-Id: Ic5c076e9e2bb2c65bb7e40ad03cb4ff93890ad57
RT: 7352
Bug: 64276
Merge "Redirect https traffic from old metrics sites to wikimetrics" into production