add raf polyfill to satisfy react 16

Author: juliankrispel

jest.config.js

@@ -1,3 +1,4 @@
 module.exports = {
   testRegex: "(/__tests__/.*|(\\.|/|-)(test|spec))\\.jsx?$",
+  setupTestFrameworkScriptFile: "./setup-jest.js",
 };

package.json

@@ -76,6 +76,7 @@
     "postcss-loader": "^1.1.1",
     "prettier": "^1.7.0",
     "prismjs": "^1.6.0",
+    "raf": "^3.4.0",
     "react": "16.2.x",
     "react-addons-pure-render-mixin": "^15.4.1",
     "react-addons-test-utils": "^15.4.1",

setup-jest.js

@@ -0,0 +1 @@
+require("raf/polyfill");

yarn.lock

@@ -5228,6 +5228,12 @@ querystring@0.2.0, querystring@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
 
+raf@^3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/raf/-/raf-3.4.0.tgz#a28876881b4bc2ca9117d4138163ddb80f781575"
+  dependencies:
+    performance-now "^2.1.0"
+
 ramda@^0.24.1:
   version "0.24.1"
   resolved "https://registry.yarnpkg.com/ramda/-/ramda-0.24.1.tgz#c3b7755197f35b8dc3502228262c4c91ddb6b857"