More information about release schedule

[brson]

Today the front page says

Rust 1.10 stable will release on Thu Jul 07 2016.
Rust 1.9 stable was released on Thu May 26 2016.

Just recently I needed to know that e.g. nightly is 1.11 and will become stable on $date, which isn't available there.

The things I want to know about each release channel are:

• Full version number (including sha)
• Archive date
• When it will become stable / when it was released as stable (different from archive date)

Instead of presenting this information as a list of stable releases, I'd suggest making it a table of release channel statuses, with the columns being 'channel', 'version', 'stable release date', 'archive date'

[anp]

Boilerplate: I'm going to refocus this project on rfcbot, since that's the primary usage rusty-dash.com is seeing.