updated .travis.yml. it seems that docs token has been changed so far?
updated .travis.yml. it seems that docs token has been changed so far?

lifthrasiir/rust-encoding,nox/rust-encoding,tempbottle/rust-encoding,nox/rust-encoding,nox/rust-encoding,tempbottle/rust-encoding,tempbottle/rust-encoding,lifthrasiir/rust-encoding,lifthrasiir/rust-encoding