Crate no longer compiles with `..` character ranges.

Ranges must use the `...` syntax as of [rust PR #17584](https://github.com/rust-lang/rust/pull/17584)

Passes `cargo build` and `cargo test`.
_Tested locally with `rustc 0.12.0-dev (8ab6fce95 2014-10-01 11:27:23 +0000)` and `cargo 0.0.1-pre (4ee87de 2014-09-08 17:58:56 +0000)`._