Upgrade react modules for 0.14

They are now completely 0.14 compatible, so we can remove our port'd versions now.

package.json

@@ -54,9 +54,9 @@
     "react-addons-test-utils": "0.14.0",
     "react-dom": "0.14.0",
     "react-intl": "2.0.0-pr-3",
-    "react-modal": "git://github.com/mewtaylor/react-modal.git#react-14",
-    "react-onclickoutside": "0.3.1",
-    "react-slick": "git://github.com/mewtaylor/react-slick.git#remove-deprecation-warnings",
+    "react-modal": "0.6.1",
+    "react-onclickoutside": "4.1.1",
+    "react-slick": "0.9.2",
     "routes-to-nginx-conf": "0.0.4",
     "sass-lint": "1.3.2",
     "sass-loader": "2.0.1",