Initial support for macros 1.1
Initial support for macros 1.1

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