Merge pull request #26 from hannobraun/master

Fixed: make clean wasn't removing *.rlib.
Rust upgrade
Warning police.
Merge pull request #27 from larsbergstrom/rust_20140224b

Rust upgrade
Clean rlib files
Merge pull request #28 from larsbergstrom/clean_rlib

Clean rlib files
Updated to latest Rust: std::vec -> std::slice
Merge pull request #29 from ozkriff/master

Updated to latest Rust: std::vec -> std::slice