[updated] - bug fixes and improvements

git-svn-id: https://plugins.svn.wordpress.org/vidtok-vidone-video-chat-using-tokboxs-opentok-api/trunk@778609 b8457f37-d9ea-0310-8a92-e5e31aec5664
[updated] - readme.txt

git-svn-id: https://plugins.svn.wordpress.org/vidtok-vidone-video-chat-using-tokboxs-opentok-api/trunk@778610 b8457f37-d9ea-0310-8a92-e5e31aec5664