Fix duplicate parameters when using ?page_size=
Fix duplicate parameters when using ?page_size=

DRF automatically includes ?page_size etc in the next URL, so adding them manually results in duplicate parameters in url.

eg.
/api/feed/?custom_filter=true&custom_filter=true&custom_filter=true&custom_filter=true&custom_filter=true&custom_filter=true&custom_filter=true&custom_filter=true&custom_filter=true&page=10&page_size=5&page_size=5&page_size=5&page_size=5&page_size=5&page_size=5&page_size=5&page_size=5&page_size=5&custom_filter=true&page_size=5

pombredanne/angular-django-rest-resource,sorenh/angular-django-rest-resource,sorenh/angular-django-rest-resource,pombredanne/angular-django-rest-resource,mscienski/angular-django-rest-resource