Test on stable/beta branches on Travis as well
Test on stable/beta branches on Travis as well

rust-lang/rustfmt,aidancully/rust,graydon/rust,rust-lang/rustfmt,studoot/rustfmt,aidancully/rust,Emilgardis/rustfmt,flutterhash/rustfmt,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,SingingTree/rustfmt,Emilgardis/rustfmt,graydon/rust,graydon/rust,SingingTree/rustfmt,aidancully/rust,aidancully/rust,graydon/rust,studoot/rustfmt