Upgrade to React 16

Author: ryanbrainard

package-lock.json

@@ -69,9 +69,9 @@
     "jsdom": "^7.2.2",
     "mocha": "^6.2.2",
     "prop-types": "^15.7.2",
-    "react": "^15.0.1",
-    "react-addons-test-utils": "^15.0.1",
-    "react-dom": "^15.0.1",
+    "react": "^16.8.6",
+    "react-dom": "^16.8.6",
+    "react-test-renderer": "^16.8.6",
     "rimraf": "^2.3.4",
     "whatwg-fetch": "*"
   },

package.json

@@ -1,7 +1,7 @@
 /* eslint-disable no-unused-vars */
 import expect from 'expect'
 import React, { Component } from 'react'
-import TestUtils from 'react-addons-test-utils'
+import TestUtils from 'react-dom/test-utils'
 import PropTypes from 'prop-types'
 import { connect, PromiseState } from '../../src/index'
 import buildRequest from '../../src/utils/buildRequest'