Update CI configurations

.travis.yml

@@ -0,0 +1,15 @@
+sudo: required
+language: rust
+rust:
+  - stable
+  - beta
+  - nightly
+before_script:
+  - pip install 'travis-cargo<0.2' --user && export PATH=$HOME/.local/bin:$PATH
+script:
+  - travis-cargo build
+  - travis-cargo test
+  # - travis-cargo --only stable doc
+after_success:
+  # - travis-cargo --only stable doc-upload
+  - travis-cargo coveralls

appveyor.yml

@@ -0,0 +1,12 @@
+install:
+  - ps: Start-FileDownload 'https://static.rust-lang.org/dist/rust-nightly-i686-pc-windows-gnu.exe'
+  - rust-nightly-i686-pc-windows-gnu.exe /VERYSILENT /NORESTART /DIR="C:\Program Files (x86)\Rust"
+  - SET PATH=%PATH%;C:\Program Files (x86)\Rust\bin
+  - SET PATH=%PATH%;C:\MinGW\bin
+  - rustc -V
+  - cargo -V
+
+build: false
+
+test_script:
+  - cargo test --verbose