ServiceProvide::package need only one argument.

Only the first argument is mandatory. The second argument is for namespacing (should be chargebee-laravel4) and you do not need neither. Remove-it allow us to use Laravel config as espected on Laravel Framework. 

See : 
http://laravel.com/api/4.0/index.html
http://laravel.com/api/4.1/index.html
http://laravel.com/api/4.2/index.html

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