Removed contributor

git-svn-id: https://plugins.svn.wordpress.org/qr-code-waiter-calling-system/trunk@975037 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added contributor

git-svn-id: https://plugins.svn.wordpress.org/qr-code-waiter-calling-system/trunk@975039 b8457f37-d9ea-0310-8a92-e5e31aec5664