Error handling for Geo background tasks

[subinasr]

When geo background import tasks fail, the user doesn't get any feedback. We need to add a status field to fix this issue.

server/apps/geo/tasks.py

Lines 207 to 221 in 5f1d955

	def load_geo_areas(region_id):
	key = 'load_geo_areas_{}'.format(region_id)
	lock = redis.get_lock(key, 60 * 30) # Lock lifetime 30 minutes
	have_lock = lock.acquire(blocking=False)
	if not have_lock:
	return False
	try:
	return_value = _load_geo_areas(region_id)
	except Exception:
	logger.error('Load Geo Areas', exc_info=True)
	return_value = False
	lock.release()
	return return_value