Using Node v4 in travis CI
Using Node v4 in travis CI

The test suit doesn't run in Node v5, but I'm not sure whether this is a
problem with jest or react-docgen (or one of its dependencies). Will
have to investigate more...

janicduplessis/react-docgen,banderson/react-docgen,reactjs/react-docgen,fkling/react-docgen,reactjs/react-docgen,reactjs/react-docgen