Replace typings with @types

package.json

@@ -8,7 +8,7 @@
   },
   "scripts": {
     "start": "node ./dist/index.js",
-    "prepublish": "typings install && npm run build",
+    "prepublish": "npm run build",
     "build": "tsc",
     "test": "npm run build && npm run lint && npm run mocha",
     "mocha": "mocha --compilers ts:ts-node/register --require scripts/test-helper.js --recursive --bail tests/**/*.test.ts tests/*.test.ts",
@@ -41,6 +41,12 @@
     "winston": "2.3.1"
   },
   "devDependencies": {
+    "@types/chai": "4.1.2",
+    "@types/compression": "0.0.35",
+    "@types/express": "4.11.0",
+    "@types/helmet": "0.0.37",
+    "@types/mocha": "2.2.47",
+    "@types/serve-index": "1.7.29",
     "chai": "4.0.2",
     "chai-as-promised": "7.1.1",
     "mocha": "3.4.2",
@@ -48,7 +54,6 @@
     "supertest": "3.0.0",
     "ts-node": "3.2.0",
     "tslint": "5.5.0",
-    "typescript": "2.2.1",
-    "typings": "2.1.0"
+    "typescript": "2.2.1"
   }
 }

tsconfig.json

@@ -21,7 +21,7 @@
   ],
   "typeRoots": [
     "node_modules",
-    "typings",
+    "node_modules/@types/",
     "src/types"
   ],
   "compileOnSave": false

typings.json

@@ -1,16 +0,0 @@
-{
-  "dependencies": {
-    "compression": "registry:dt/compression#0.0.0+20160725212620",
-    "debug": "registry:npm/debug#2.0.0+20160723033700",
-    "express": "registry:npm/express#4.14.0+20160925001530",
-    "helmet": "registry:dt/helmet#0.0.0+20170310054102",
-    "serve-index": "registry:dt/serve-index#1.7.2+20160428043022"
-  },
-  "globalDependencies": {
-    "node": "registry:dt/node#7.0.0+20170204020307"
-  },
-  "globalDevDependencies": {
-    "chai": "registry:dt/chai#3.4.0+20170217154556",
-    "mocha": "registry:dt/mocha#2.2.5+20170204022515"
-  }
-}