ErrorsField compatible with react@0.14.x

[janslowik]

I used uniforms with old version of react because of other project dependencies. Most of feature works well despite the uniforms need react@15. However I got error when tried to use ErrorsField.

No render method found on the returned component instance: you may have forgotten to define render, returned null/false from a stateless component, or tried to render an element whose type is a function that isn't a React component.

Is it possible to provide functionality of uniforms with older version of react.

[radekmie]

I've fixed it on devel branch. It would be great if you could test it and let me know, if it works correctly.