use Wordpress 2.8 Widget API

git-svn-id: https://plugins.svn.wordpress.org/cforms2/trunk@1019506 b8457f37-d9ea-0310-8a92-e5e31aec5664
mitigate more SQL injection attacks and get rid of deprecated wpdb->escape() method

git-svn-id: https://plugins.svn.wordpress.org/cforms2/trunk@1019507 b8457f37-d9ea-0310-8a92-e5e31aec5664
update l10n

git-svn-id: https://plugins.svn.wordpress.org/cforms2/trunk@1019508 b8457f37-d9ea-0310-8a92-e5e31aec5664
version 14.6.10

git-svn-id: https://plugins.svn.wordpress.org/cforms2/trunk@1019509 b8457f37-d9ea-0310-8a92-e5e31aec5664