Install react-dom

Author: Joe McKie

package.json

@@ -55,6 +55,7 @@
     "react-addons-pure-render-mixin": "^15.4.0",
     "react-addons-test-utils": "^15.4.0",
     "react-addons-update": "^15.4.0",
+    "react-dom": "^15.4.0",
     "react-timer-mixin": "^0.13.3",
     "warning": "^2.1.0"
   },