Remove cyclic imports by moving response method of out_of_band.Error class to soc.views.helper.responses module as errorResponse function. Apply changes to affected files. Patch by: Pawel Solyga

# Geo-enabled Sitemap classes.
from django.contrib.gis.sitemaps.georss import GeoRSSSitemap
from django.contrib.gis.sitemaps.kml import KMLSitemap, KMZSitemap