Change "Search" label to "Filter"

git-svn-id: https://plugins.svn.wordpress.org/community-yard-sale/trunk@877209 b8457f37-d9ea-0310-8a92-e5e31aec5664
Replaced <? with <?php

git-svn-id: https://plugins.svn.wordpress.org/community-yard-sale/trunk@877212 b8457f37-d9ea-0310-8a92-e5e31aec5664