Bug 995378 - Copy changes for www.mozilla.org/gigabit

https://bugzilla.mozilla.org/show_bug.cgi?id=995378

Make date changes outlined in this doc (https://docs.google.com/a/mozillafoundation.org/document/d/1d2z0G64BePBBjf2xTIPTht9J49v8SkNjk4srloOipEQ/edit)