chore: change react and react-router dependencies (#68)

Author: kuflash

package.json

@@ -53,12 +53,14 @@
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "^1.7.0",
     "phantomjs-prebuilt": "^2.1.7",
+    "react": "^15.1.0",
     "webpack": "^1.13.0",
     "webpack-node-externals": "^1.2.0"
   },
+  "peerDependencies": {
+    "react-router": "^2.3.0"
+  },
   "dependencies": {
-    "react": "^15.1.0",
-    "react-router": "^2.3.0",
     "sitemap": "^1.6.0"
   }
 }