Remove Travis CI.

.travis.yml

@@ -1,29 +0,0 @@
-language: rust
-
-rust:
-  - stable
-  - beta
-  - nightly
-
-os:
-  - linux
-  - osx
-
-script:
-  - rustc --version
-  - cargo --version
-  - echo "Testing default crate configuration"
-  - cargo build --verbose
-  - cargo test --verbose
-  - cd examples && cargo check --verbose
-  - echo "Testing feature serialization"
-  - cargo build --verbose --features serialization
-  - cargo test --verbose --features serialization
-  - echo "Building without std"
-  - cargo build --verbose --no-default-features
-  - echo "Testing with cgmath"
-  - cargo build --verbose --features impl-cgmath
-  - cargo test --verbose --features impl-cgmath
-  - echo "Testing with nalgebra"
-  - cargo build --verbose --features impl-nalgebra
-  - cargo test --verbose --features impl-nalgebra