Please Upgrade React dependency 15.x

Repo has dependency on react 0.13.x. Seems as though there is a breaking change preventing me from using the library with React 15.3.2.

Error:
```
ReactClass.js:842 Uncaught TypeError: Cannot read property '__reactAutoBindMap' of undefined
at Constructor (ReactClass.js:842)
at ReactCompositeComponent.js:305
at measureLifeCyclePerf (ReactCompositeComponent.js:74)
at ReactCompositeComponentWrapper._constructComponentWithoutOwner (ReactCompositeComponent.js:304)
at ReactCompositeComponentWrapper._constructComponent (ReactCompositeComponent.js:279)
at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:187)
at Object.mountComponent (ReactReconciler.js:47)
at ReactDOMComponent.mountChildren (ReactMultiChild.js:240)
at ReactDOMComponent._createInitialChildren (ReactDOMComponent.js:699)
at ReactDOMComponent.mountComponent (ReactDOMComponent.js:524)
```

Start by locating the React dependency declaration and reproducing the reported failure with React 15.3.2. Review the compatibility impact of the upgrade and verify that the reported __reactAutoBindMap error no longer occurs when using the geocoder component.

Written by the indexing model from the issue text.