Avoid online dependencies for bundled HTML documentation

[julia-issue-2016-11-17]

I appreciate Julia's bundled, offline HTML documentation. However, it currently references several remote resources, causing it to load slowly when the internet connection is slow or absent. I found that removing references to fonts.googleapis.com and the modernizr script on cloudflare fixes the problem. The offline documentation should come bundled with copies of all of its JS libraries; it already does so for jquery and underscore. Thanks.

[KristofferC]

What is the status of this @mortenpi

[mortenpi]

Somewhere on the TODO list in principle (JuliaDocs/Documenter.jl#212). Offline docs definitely shouldn't depend on CDNs, but it has been low-priority.

Wouldn't be too hard to do -- just needs a new format or option. We'd need to download the .js files during the build. Updating the <link> tags would be easy, but we'd also generate documenter.js dynamically since that contains the links to the js libraries. The tricky bit would be to deal with the libraries that load additional resources (e.g. MathJax and the fonts).