freude 0.5.0

Something that is supposed to develop into a fully fledged ODE library.
Documentation
language: rust
sudo: required
matrix:
  include:
    - rust: stable
    - rust: beta
    - rust: nightly
      env:
          - FEATURES='nightly_test'
branches:
  only:
    - master
script:
  - |
      cargo build --verbose --no-default-features &&
      cargo test --verbose --no-default-features &&
      cargo test --release --verbose --no-default-features &&
      cargo build --verbose --features "$FEATURES" &&
      cargo test --verbose --features "$FEATURES"