Update to react 16

package.json

@@ -23,8 +23,8 @@
     "url": "git+ssh://git@github.com/LLK/scratch-paint.git"
   },
   "peerDependencies": {
-    "react": "^15",
-    "react-dom": "^15"
+    "react": "^16",
+    "react-dom": "^16"
   },
   "devDependencies": {
     "autoprefixer": "7.1.2",
@@ -39,7 +39,8 @@
     "babel-preset-react": "^6.22.0",
     "classnames": "2.2.5",
     "css-loader": "0.28.3",
-    "enzyme": "^2.8.2",
+    "enzyme": "^3.1.0",
+    "enzyme-adapter-react-16": "^1.0.1",
     "eslint": "^4.4.1",
     "eslint-config-import": "^0.13.0",
     "eslint-config-scratch": "^4.0.0",
@@ -58,12 +59,13 @@
     "postcss-loader": "^2.0.5",
     "postcss-simple-vars": "^4.0.0",
     "prop-types": "^15.5.10",
-    "react": "15.6.1",
-    "react-dom": "15.6.1",
-    "react-intl": "2.3.0",
+    "raf": "^3.4.0",
+    "react": "16.0.0",
+    "react-dom": "16.0.0",
+    "react-intl": "2.4.0",
     "react-intl-redux": "0.6.0",
     "react-redux": "5.0.5",
-    "react-test-renderer": "^15.5.4",
+    "react-test-renderer": "^16.0.0",
     "redux": "3.7.0",
     "redux-mock-store": "^1.2.3",
     "redux-throttle": "0.1.1",
@@ -75,6 +77,10 @@
     "webpack-dev-server": "^2.7.0"
   },
   "jest": {
+    "setupFiles": [
+      "raf/polyfill",
+      "<rootDir>/test/helpers/enzyme-setup.js"
+    ],
     "moduleNameMapper": {
       "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/test/__mocks__/fileMock.js",
       "\\.(css|less)$": "<rootDir>/test/__mocks__/styleMock.js"

test/helpers/enzyme-setup.js

@@ -0,0 +1,4 @@
+import Enzyme from 'enzyme';
+import Adapter from 'enzyme-adapter-react-16';
+
+Enzyme.configure({adapter: new Adapter()});