Change form template on the fly

[developerlover]

Hi @barryvdh !

Thank you so much for the package, it saved my life!

I wonder if there is a way of change the default form template on the fly. Maybe from a Blade view, form class or the controller...

Like symfony does from a Twig view:
{% form_theme form 'foundation_5_layout.html.twig' %}

Found that using the Config facade I can do it:
Config::set('form.theme', 'form_table_layout.html.twig');

But this it's a bit ugly because it changes the template for the following forms in the same request.

Regards,
Pablo.