change provider

git-svn-id: https://plugins.svn.wordpress.org/jm-simple-qr-code-widget/trunk@968733 b8457f37-d9ea-0310-8a92-e5e31aec5664
uninstall

git-svn-id: https://plugins.svn.wordpress.org/jm-simple-qr-code-widget/trunk@968734 b8457f37-d9ea-0310-8a92-e5e31aec5664