Merge branch 'master' into master

.travis.yml

CONTRIBUTING.md

Cargo.toml

README.md

ci/dox.sh

ci/landing-page-footer.html

ci/landing-page-head.html

ci/runtest-android.rs

libc-test/Cargo.toml

libc-test/build.rs

src/cloudabi/mod.rs

src/dox.rs

src/fuchsia/mod.rs

src/lib.rs

src/macros.rs

src/redox/mod.rs

src/unix/bsd/apple/mod.rs

src/unix/bsd/freebsdlike/dragonfly/mod.rs

src/unix/bsd/freebsdlike/freebsd/aarch64.rs

src/unix/bsd/freebsdlike/freebsd/arm.rs