Upgraded koa

package.json

@@ -96,19 +96,17 @@
     "js-tree": "1.1.0",
     "json-loader": "0.5.4",
     "jsonwebtoken": "7.0.1",
-    "koa": "2.0.0",
+    "koa": "^2.2.0",
     "koa-bodyparser": "2.0.1",
     "koa-compress": "2.0.0",
     "koa-connect": "1.0.0",
     "koa-convert": "1.2.0",
     "koa-helmet": "1.0.0",
-    "koa-jwt": "1.2.0",
-    "koa-logger": "2.0.0",
-    "koa-mount": "2.0.0",
+    "koa-jwt": "^3.2.1",
+    "koa-logger": "^2.0.1",
+    "koa-mount": "^3.0.0",
     "koa-router": "7.0.1",
     "koa-sendfile": "2.0.0",
-    "koa-webpack-dev-middleware": "1.2.0",
-    "koa-webpack-hot-middleware": "1.0.3",
     "localenv": "0.2.2",
     "lodash": "^4.17.4",
     "lodash.orderby": "4.4.0",
@@ -120,7 +118,6 @@
     "moment": "2.13.0",
     "node-dev": "3.1.0",
     "node-sass": "3.8.0",
-    "nodemon": "^1.11.0",
     "normalize.css": "4.1.1",
     "normalizr": "2.0.1",
     "pg": "^6.1.5",
@@ -164,11 +161,11 @@
     "identity-obj-proxy": "^3.0.0",
     "ignore-loader": "0.1.1",
     "jest-cli": "^15.1.1",
-    "koa-webpack-dev-middleware": "1.2.0",
+    "koa-webpack-dev-middleware": "1.4.5",
     "koa-webpack-hot-middleware": "1.0.3",
     "lint-staged": "^3.4.0",
     "node-dev": "3.1.0",
-    "nodemon": "1.9.1",
+    "nodemon": "1.11.0",
     "prettier": "^1.2.2",
     "react-addons-test-utils": "^15.3.1",
     "react-test-renderer": "^15.3.1"