[#463] Use the Tire::Results::Pagination::default_per_page value in model search integration
[#463] Use the Tire::Results::Pagination::default_per_page value in model search integration

Previously, without a `per_page` option, the `page` option was quietly ignored,
see failing test in karmi/tire@547feca.

With this change, you can pass just the `page` to the search:

    Article.search params[:q], :page => params[:page]

Closes #463.

elbuo8/retire,iamrahulroy/retire,alphagov/tire,rubydubee/retire,ChapterMedia/tire,zaharpecherin/retire,dbose/retire,Telmate/tire,tklee/tire_shiphawk,HenleyChiu/tire,brijeshgpt7/retire,1776/tire,karmi/retire,mavenlink/retire,doximity/tire,fabn/retire