~str is gone; Change it to String
{Total,}{Ord,Eq} => {,Partial}{Ord,Eq}
Formatter implements Writer now
mem::uninit -> mem::uninitialized
task_rng was moved into std::rand
Cargo-ify
Make rust-gmp compile again
divides -> is_multiple_of
Use cargo num
Fix tests: to_str -> to_string
Mark structs with correct representation