update dependencies to latest versions. Add yarn.lock

package.json

@@ -23,18 +23,18 @@
   },
   "homepage": "http://mobxjs.github.com/mobx",
   "devDependencies": {
-    "@types/react": "^0.14.36",
-    "@types/react-dom": "^0.14.17",
-    "awesome-typescript-loader": "^2.2.4",
-    "typescript": "2.0.3",
+    "@types/react": "^15.0.39",
+    "@types/react-dom": "^15.5.1",
+    "awesome-typescript-loader": "^3.2.1",
+    "typescript": "^2.4.2",
     "webpack": "^1.9.6",
     "webpack-dev-server": "^1.8.2"
   },
   "dependencies": {
-    "mobx": "^2.5.1",
-    "mobx-react": "^3.5.6",
-    "mobx-react-devtools": "^4.2.6",
-    "react": "^15.3.1",
-    "react-dom": "^15.3.1"
+    "mobx": "^3.2.1",
+    "mobx-react": "^4.2.2",
+    "mobx-react-devtools": "^4.2.15",
+    "react": "^15.6.1",
+    "react-dom": "^15.6.1"
   }
 }