spring cleaned matchchat.php with user-friendly instructions

git-svn-id: https://plugins.svn.wordpress.org/matchchat/trunk@975336 b8457f37-d9ea-0310-8a92-e5e31aec5664
version bump

git-svn-id: https://plugins.svn.wordpress.org/matchchat/trunk@975337 b8457f37-d9ea-0310-8a92-e5e31aec5664