- when the "Num Results per page" widget is changed, set current page to 1 (so you don't wind up on an out-of-range page when going up to a higher number of items per page)
- scrub page query parameter from nav menu hrefs (so you don't wind up on an out-of-range page when drilling down into a child category)
Thanks to Tusko and Engledogg for reporting the bugs and QA work.
