message: Implemented link context HOC
diff: +import { Consumer } from './NavigationContext';
  +import * as React from 'react';
  +
  +export default Link => props => (
  + <Consumer>
  + {value => <Link stateNavigator={value && value.stateNavigator} navigationContext={!!value} {...props} />}
  + </Consumer>
  +);
  +
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