Configure Travis CI to test with both the nightly and 1.0.0-beta versions
Configure Travis CI to test with both the nightly and 1.0.0-beta versions

nmathewson/rust-crypto,tempbottle/rust-crypto,andreasots/rust-crypto,canndrew/rust-crypto,DaGenix/rust-crypto,thinkingfish/rust-crypto,canndrew/rust-crypto,DaGenix/rust-crypto,PeterReid/rust-crypto,nmathewson/rust-crypto,PeterReid/rust-crypto,andreasots/rust-crypto,tempbottle/rust-crypto,mseri/rust-crypto,thinkingfish/rust-crypto,mseri/rust-crypto