Name the setup program `rustup-setup.exe`. Modify travis and appveyor
configs to deploy it from master to dev-static.rust-lang.org, and from
the stable branch to static.rust-lang.org.
The directory structure under s3 is
rustup/
www/ - the (simple) website
rustup-setup.sh - the curlable script
dist/$target/
rustup-setup$exe
rustup-setup$exe.sha256
The shell script and website are deployed from x86_64-linux.
Self upgrades are directed to
> https://static.rust-lang.org/rustup/dist/$target/
The rustup-setup.sh script is accessible via sh.rustup.rs,
one of the windows bins at win.rustup.rs, and the website
at www.rustup.rs.
The website is really simple. It does platform detection
and says how to use sh.rustup.rs or win.rustup.rs.
The website is not necessarily final, but I'm probably
not going to think much more about it before asking
for testing and feedback.
Once this is deployed I will do a one-time deployment of the
bins to the old upgrade location to provide continuity.
