Update for  Laravel 4.2

Once Laravel is updated to 4.2, you will get the following error running LavaCharts:

Argument 1 passed to Khill\Lavacharts\Lavacharts::__construct() must be an instance of Khill\Lavacharts\Environment, instance of Illuminate\View\Factory given

Simple fix, maybe create a branch for laravel 4.2?

Thanks!