from_str has an impl for uint, not Option<uint>
manual -> reference & formatting

'reference' sounds better than 'manual' to me here, and rust.html is
certainly wrong.

I also wrapped everything to 80 cols.
modernize code blocks
make note of language vs libraries
Remove disclaimer

This is just true of all of Rust, and doesn't make a lot of sense now.
Especially as we move towards finalizing things, I think it's time for
this to go.
'.  ' -> '. '
move keywords to table
'merican English
uhhh weird triple backticks
rust -> Rust
glob imports are an external crate
fix example
Fix terminology around boxes

it's just 'box' not 'owned box'
Remove lies about task scheduling

it's 1:1 by default now, and N:M is on its way out
runtime has no C++
no it won't
logging is an external crate
die 'managed'
vectors are not in the language
clean up some references to 'owned'