[4.2] Fixed Query\Builder call to undefined method hasGetMutator

[koss-shtukert]

When using lists method in Query\Builder:
Call to undefined method Illuminate\Database\Query\Builder::hasGetMutator().
Need new method getMutatorMethod

Proposed changes fix issue.

[GrahamCampbell]

Please update the tests.

[xAockd]

@GrahamCampbell Done.

[arcanedev-maroc]

I've got the same error when i switch my projects to "laravel/framework": "4.2.x-dev".

When i run artisan, i got this:
Exception => 'BadMethodCallException' with message 'Call to undefined method Illuminate\Database\Query\Builder::hasGetMutator()' in (base_path)\vendor\laravel\framework\src\Illuminate\Database\Query\Builder.php:2143

And it caused by lists() method from Eloquent Model (Illuminate\Database\Eloquent\Builder->lists('id')).

[GrahamCampbell]

We need to restore the original function in laravel 4.2 to maintain bc before the next patch tag. I will deal with this.