title: How to install custom typings?
body: <p>I created a custom typing contains code that I would like to share across several webstorm node.js projects.  The issue is that I am trying to find documentation outlining how to include the typing in a project.  I tried to using the npm command but it did not add the folder to the @typings folder under /node_modules folder.  Also, when I compile the project that I am trying to add the custom typing to, I am getting duplicate errors for the mongoose library between the project that contains the typing and the project I would like to add the typing to.  I am not sure of what the problem could be.  </p>
  
  <p>tsconfig.json(for the new type):</p>
  
  <pre><code>{
    "name": "newcustomtype",
    "description": "...",
    "version": "1.0.0",
    "main": "./dist/index.js",
    "typings": "./dist/index.d.ts",
    "scripts": {
      "grunt": "grunt"
    },
    "dependencies": {
      "@types/express": "^4.0.35",
      "@types/express-jwt": "0.0.34",
      "debug": "^2.2.0",
      "dotenv": "^4.0.0",
      "mongoose": "^4.9.2",
      "tslint": "^4.5.1"
    },
    "devDependencies": {
      "@types/mongodb": "^2.1.41",
      "@types/mongoose": "^4.7.9",
      "@types/node": "^7.0.10",
      "grunt": "^1.0.1",
      "grunt-cli": "^1.2.0",
      "grunt-contrib-watch": "^1.0.0",
      "grunt-ts": "^6.0.0-beta.15",
      "grunt-tslint": "^4.0.1",
      "nodemon": "^1.11.0",
      "ts-node": "^3.0.2",
      "tslint": "^4.5.1",
      "typescript": "^2.2.1"
    }
  }
  </code></pre>
  
  <p>tsconfig.json(where the typing should be installed):</p>
  
  <pre><code>{
    "compilerOptions": {
      "module": "commonjs",
      "target": "ES5",
      "moduleResolution": "node",
      "experimentalDecorators": true,
      "emitDecoratorMetadata": true,
      "types": ["reflect-metadata"],
      "lib": ["ES6"],
      "sourceMap": true,
      "inlineSources": true,
      "pretty": true,
      "outDir": "dist",
      "rootDir": "src",
      "noLib": false
    },
    "include": [
      "src/**/*.ts"
    ],
    "exclude": [
      "node_modules"
    ],
    "compileOnSave": false
  }
  </code></pre>
  
  <p>I tried to follow the doc. on the typescript website but I have not been able to find a resource outlining how to install once created.  Although, for it to not install the custom typing, I think there is also a problem with my tsconfig files as well.  Please review and let me know what I am missing?  </p>
  
  <p>Thanks in advance.</p>