language: node_js
node_js:
  - "node"
  - "6"
  - "4"
env:
  - REACT_VERSION=0
  - REACT_VERSION=15
  - REACT_VERSION=16
  - REACT_VERSION=*
install:
  - npm install
  - npm install react@$REACT_VERSION
cache:
  directories:
    - "node_modules"

language: node_js
node_js:
  - "node"
  - "6"
  - "4"
env:
  - REACT_VERSION=0
  - REACT_VERSION=15
  - REACT_VERSION=*
install:
  - npm install
  - npm install react@$REACT_VERSION
cache:
  directories:
    - "node_modules"

Remove build for React 16.x.
Remove build for React 16.x.

React 16 is still in alpha, so "npm install react@16" fails the build.
