another render_to_response wrapper
Wrapper for render_to_response that allows you to pass in a optional preinitialized HttpResponse object. Helpful when you want to want to set cookies or just add some extra initialization to your HttpResponse. If no HttpResponse is passed in the normal render_to_response is called. It's called exactly like the normal render_to_response except that you can pass in a kwargs response pair if you wish. Like so: code render_response('index.html',{'aparam': val}, context_instance=RequestContext(request),response=my_response)