Update to React 16 when that is released

[landonreed]

Issue by evansiroky Thursday Nov 08, 2018 at 18:30 GMT Originally opened as https://github.com/catalogueglobal/datatools-ui/issues/253

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React 17 isn't out yet, but it's coming somewhat soon. Something that we'll need to do is remove the following methods from each component: componentWillMount, componentWillReceiveProps, and componentWillUpdate. See this blog post for more details.