Consider installing HTML documentation

[SiegeLord]

The best documentation to use while programming in Rust is the one that matches the nightly/master that is installed. To that end, it'd be convenient if install.sh installed the HTML documentation somewhere (e.g. ${PREFIX}/share/doc/rust for Linux). Something similar should be done for Windows.

[brson]

Agreed.

[brson]

An ugly problem here is going to be just generating the documentation on every platform because we use pandoc and tex to generate the PDF's. We might consider explicitly excluding the PDF's from the binary distribution.

[brson]

(I know the title says 'HTML' but I consider it all just 'docs', and it will take special effort to not include the PDF's).

[michaelsproul]

The nightly binary archives already include HTML-only documentation. Would a PR modifying install.sh with an option to install these docs be beneficial?

It doesn't help Windows or building from source, but it's a start?

[brson]

@michaelsproul Sorry for not getting back to you. I'm about to do a major refactoring of the installer, so I'll try to make this happen there.

[michaelsproul]

@brson No worries!