Crash when try to install pnpm

- **Version**: 2.3.2
- **Platform**: Linux cloudcmd 4.4.0-36-generic #55-Ubuntu SMP Thu Aug 11 18:01:55 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
- **Subsystem**:

When I tried to install [pnpm](https://github.com/rstacruz/pnpm/) error occur:

``` sh
coderaiser@cloudcmd:~/iocmd$ ied i pnpm -g

/home/coderaiser/.npm-packages/lib/node_modules/ied/node_modules/rxjs/Observer.js:5
error: function (err) { throw err; },
^
AssertionError: error status code https://registry.npmjs.org/@zkochan%2Flogger/0.1.0: undefined
at checkStatus (/home/coderaiser/.npm-packages/lib/node_modules/ied/lib/registry.js:97:20)
at SafeSubscriber._next (/home/coderaiser/.npm-packages/lib/node_modules/ied/lib/registry.js:134:12)
at SafeSubscriber.__tryOrSetError (/home/coderaiser/.npm-packages/lib/node_modules/ied/node_modules/rxjs/Subscriber.js:232:16)
at SafeSubscriber.next (/home/coderaiser/.npm-packages/lib/node_modules/ied/node_modules/rxjs/Subscriber.js:174:27)
at Subscriber._next (/home/coderaiser/.npm-packages/lib/node_modules/ied/node_modules/rxjs/Subscriber.js:125:26)
at Subscriber.next (/home/coderaiser/.npm-packages/lib/node_modules/ied/node_modules/rxjs/Subscriber.js:89:18)
at DoSubscriber._next (/home/coderaiser/.npm-packages/lib/node_modules/ied/node_modules/rxjs/operator/do.js:82:24)
at DoSubscriber.Subscriber.next (/home/coderaiser/.npm-packages/lib/node_modules/ied/node_modules/rxjs/Subscriber.js:89:18)
at /home/coderaiser/.npm-packages/lib/node_modules/ied/lib/util.js:91:14
at done (/home/coderaiser/.npm-packages/lib/node_modules/ied/node_modules/needle/lib/needle.js:377:14)
```