remove 'import *' usage (or mark is #noqa)

This is talked in bug #1188533, and in current codes, there are several
places here:

horizon/forms/__init__.py:18:from django.forms import *
    mark '# noqa'

openstack_dashboard/settings.py:182:    from local.local_settings import *
openstack_dashboard/test/settings.py:5:from horizon.test.settings import *
    mark '# noqa'

openstack_dashboard/dashboards/project/instances/workflows/__init__.py:1:from create_instance import *
openstack_dashboard/dashboards/project/instances/workflows/__init__.py:2:from update_instance import *
openstack_dashboard/dashboards/project/instances/workflows/__init__.py:3:from resize_instance import *
    fix it

openstack_dashboard/dashboards/project/images_and_snapshots/urls.py:21:from django.conf.urls.defaults import *
    fix it

fixes bug # 1188533
Change-Id: Id671280903f8452a78f81f1240d92297de7a89a8
Merge "remove 'import *' usage (or mark is #noqa)"