Added logic for Survey and SurveyRecord.
The logic for the SurveyRecord will be seperated within the upcoming days.
Patch by: James Levy, Daniel Diniz, Lennard de Rijk
Reviewed by: Lennard de Rijk
# Geo-enabled Sitemap classes.
from django.contrib.gis.sitemaps.georss import GeoRSSSitemap
from django.contrib.gis.sitemaps.kml import KMLSitemap, KMZSitemap