Update NPM version

[ruiaraujo]

The NPM version is still at 0.3.1.

[pburgmer]

Hi,

We have a project using bindonce and unfortunately we are not able to use one-time-bindings. Can you pleas update npm to version 0.3.3. Thanks.

Best regards,
Philipp

[pburgmer]

Alternatively it is possible to use github:pasvaz/bindonce#0.3.3 as version and consume the package directly from github instead of the npm registry