Removed unneeded app_label definitions in gis_tests

    objects = models.GeoManager()

    class Meta:

        app_label = 'geoadmin'

    def __str__(self):

        return self.name

class City(NamedModel):

    point = models.PointField()

    class Meta:

        app_label = 'geoapp'

# This is an inherited model from City

class PennsylvaniaCity(City):

    objects = models.GeoManager()

    class Meta:

        app_label = 'geoapp'

class State(NamedModel):

    poly = models.PolygonField(null=gisfield_may_be_null)  # Allowing NULL geometries here.

    class Meta:

        app_label = 'geoapp'

class Track(NamedModel):

    line = models.LineStringField()

class City(NamedModel):

    point = models.PointField(geography=True)

    class Meta:

        app_label = 'geogapp'

class Zipcode(NamedModel):

    code = models.CharField(max_length=10)

    state = models.CharField(max_length=20)

    mpoly = models.MultiPolygonField(geography=True)

    class Meta:

        app_label = 'geogapp'

    def __str__(self):

        return ' County, '.join([self.name, self.state])

    dt = models.DateField()

    point = models.PointField()

    class Meta:

        app_label = 'layermap'

class Interstate(NamedModel):

    length = models.DecimalField(max_digits=6, decimal_places=2)

    path = models.LineStringField()

    class Meta:

        app_label = 'layermap'

# Same as `City` above, but for testing model inheritance.

class CityBase(NamedModel):