Awesome optional features

1. Optional integration with django-filter:

To enable this awesome feature, add filterset_class to your Django admin:

from semantic_forms.filters import SemanticFilterSet

class DemoFilter(SemanticFilterSet):
    class Meta:
        model = Demo
        fields = ("demo_field",)

class DemoAdmin(SemanticModelAdmin):
    filterset_class = DemoFilter

2. HTML preview in Django `autocomplete_fields`:

To enable this awesome feature, add the semantic_autocomplete property to your Django model:

class DemoModel(models.Model):
    @property
    def semantic_autocomplete(self):
        return self.get_img()