changelog for 0.99.8
changelog for 0.99.8

rust-lang/rustfmt,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,rust-lang/rustfmt,SingingTree/rustfmt,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust,SingingTree/rustfmt,aidancully/rust