Modifier Activité
{{ Form::model($activite,array('route' => array('activite.update', $activite->id), 'method' => 'PUT')) }}
{{ Form::label('nom', 'Nom') }}
{{ Form::text('nom',null, array('class' => 'form-control','required' => 'true')) }}
{{ Form::submit('Enregitrer', array('class' => 'btn btn-primary')) }}
{{ Form::close() }}