Remove simple_test from frontend app
Add Locality form and tests
Move localities views to locality app
Fix problem with Django form base_fields

https://docs.djangoproject.com/en/1.7/ref/forms/api/#django.forms.Form.fields

Beware not to alter the base_fields attribute because this modification
will influence all subsequent ContactForm instances within the same
Python process.
Fix problem with values data update
Add LocalityUpdate view and tests
Add set_geom Locality method and tests