fixes #2 as reported by @benjhastings If the engine is not solr/xapian, under 1.2.x it would wrongly assume that the haystack version was 2.x and error about it.
fixes #2 as reported by @benjhastings
If the engine is not solr/xapian, under 1.2.x it would wrongly assume that the haystack version was 2.x and error about it.

vmarkovtsev/django-haystackbrowser,jannon/django-haystackbrowser,jannon/django-haystackbrowser,jannon/django-haystackbrowser,vmarkovtsev/django-haystackbrowser,vmarkovtsev/django-haystackbrowser