Merge pull request #35 from ozkriff/master

Updated to latest Rust: to_strbuf -> to_string
Update to latest rust.
Merge pull request #36 from phaikawl/master

Update to latest rust.
Update to latest rust nightly
Merge pull request #38 from bjz/update

Update to latest rust nightly
Added rust-empty.mk

Also added more filters to .gitignore
Updated to latest Rust-Empty
Merge pull request #39 from bvssvni/master

Added rust-empty.mk
updating to most recent rust nightly
Merge pull request #40 from acolley/update-to-rust-nightly-20140619

updating to most recent rust nightly
Update for Cargo
Merge pull request #41 from cmr/master

Update for Cargo
Updated for Rust (0dfc90a): *mut, *const