always load analytics.js over HTTPS (#6807)
always load analytics.js over HTTPS (#6807)

Merge pull request 6807
jekyll/jekyll,getandpost/jekyll.github.io,x-way/jekyll,Strangehill/jekyll,jaybe-jekyll/jekyll,jaybe-jekyll/jekyll,ryanshaw/jekyll,x-way/jekyll,fulldecent/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,chrisfinazzo/jekyll,fulldecent/jekyll,fulldecent/jekyll,ryanshaw/jekyll,Strangehill/jekyll,tillgrallert/jekyll,Strangehill/jekyll,yhironaka/yhironaka.github.io,jekyll/jekyll,ryanshaw/jekyll,chrisfinazzo/jekyll,x-way/jekyll,jaybe-jekyll/jekyll,tillgrallert/jekyll,ryanshaw/jekyll,chrisfinazzo/jekyll,x-way/jekyll,tillgrallert/jekyll,jekyll/jekyll,jaybe-jekyll/jekyll,getandpost/jekyll.github.io,tillgrallert/jekyll,Strangehill/jekyll,fulldecent/jekyll,tillgrallert/jekyll,Strangehill/jekyll,getandpost/jekyll.github.io