Simplified the signal processor to be closer to the queued_search implementation.
Simplified the signal processor to be closer to the queued_search implementation.

stefanw/celery-haystack,roverdotcom/celery-haystack,strongholder/celery-haystack,iXioN/celery-haystack,barseghyanartur/celery-haystack,frewsxcv/celery-haystack