Update devDependencies and remove redundant / unused modules. Re GH-351

package.json

@@ -52,10 +52,7 @@
     "minilog": "2.0.8",
     "node-sass": "3.3.3",
     "po2icu": "git://github.com/LLK/po2icu.git#develop",
-    "react": "0.14.0",
-    "react-addons-test-utils": "0.14.0",
-    "react-dom": "0.14.0",
-    "react-intl": "2.0.0-beta-1",
+    "react-addons-test-utils": "0.14.7",
     "react-modal": "0.6.1",
     "react-onclickoutside": "4.1.1",
     "react-slick": "0.9.2",
@@ -67,11 +64,10 @@
     "source-map-support": "0.3.2",
     "style-loader": "0.12.3",
     "tap": "2.0.0",
-    "tape": "4.2.0",
     "url-loader": "0.5.6",
     "watch": "0.16.0",
-    "webpack": "1.12.2",
+    "webpack": "1.12.14",
     "webpack-dev-middleware": "1.2.0",
-    "xhr": "2.0.4"
+    "xhr": "2.2.0"
   }
 }