A small parser for Symbolic Expressions in Rust.

I have been a bad Rustacean, and there is basically no documentation :/ There is a lot of redundant testing though :)

Rexp is licensed under the Modified BSD License

• Documentation Comments /// for all the exported functions, and better explanation of internal details in regular comments.
• Implement traits for parsing from string and dumping to string.
• Check out BigInt crate to see if We can support 64 bit unsigned integers without adding more syntax to the SExpressions.
• Continue this list.