Inline examples broken when using HTTPS

[Krinkle]

Since HTTPS is now valid for api.jquery.com, I've started browsing the site that way. All works nice as expected, except for the inline examples.

[blocked] The page at 'https://api.jquery.com/promise/' was loaded over HTTPS, but ran insecure content from 'http://code.jquery.com/jquery-1.9.1.js': this content should also be loaded over HTTPS.

Uncaught ReferenceError: $ is not defined

[mgol]

This seems to boil down to this line: https://github.com/jquery/api.jquery.com/blob/master/entries2html.xsl#L15

There should be //, not http:// in front of the domain.

[scottgonzalez]

There are a few other issues as well. I'll land some fixes today.