Fixed composer.json with required package information for packagist

I have added the necessary data to be able to add this nice command to [packagist](http://packagist.org).

I entered the data found in one of your other packages [kuikui/memcache-service-provider](https://packagist.org/packages/kuikui/memcache-service-provider).

Without the package name provided packagist rejects to accept the package. [see the error](http://img407.imageshack.us/img407/187/vtca.png)

Please accept this PR and submit the package to packagist.org - [submit form](https://packagist.org/packages/submit)