tagging version 0.9.2

git-svn-id: https://plugins.svn.wordpress.org/smart-search/trunk@971475 b8457f37-d9ea-0310-8a92-e5e31aec5664
main plugin file head update

git-svn-id: https://plugins.svn.wordpress.org/smart-search/trunk@971480 b8457f37-d9ea-0310-8a92-e5e31aec5664