NPM gives warning because Grunt is out of date

[jehna]

Installing this project from NPM currently gives out the following warning:

npm WARN grunt-po2json@0.3.0 requires a peer of grunt@~0.4.1 but none was installed.

This is because the version in NPM still has Grunt version ~0.4.1 declared in the package.json file.

Could you update the package.json version to 0.3.1 and publish a new version to NPM? This would fix the issue. You should be able to publish the package just by running:

npm publish

Also pull request #19 can be closed, since the Grunt version is already updated.