Updating to React 15 causes errors when using TextFields

[abettadapur]

ERROR: 'Warning: TextField contains an input of type text with both value and defaultValue props. Input elements must be either controlled or uncontrolled (specify either the value prop, or the defaultValue prop, but not both). Decide between using a controlled or uncontrolled input element and remove one of these props. More info: https://fb.me/react-controlled-components'

[dzearing]

Duplicate of #4