Changing default topic name

git-svn-id: https://plugins.svn.wordpress.org/chatimity-chat-rooms/trunk@1040291 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updating version number

git-svn-id: https://plugins.svn.wordpress.org/chatimity-chat-rooms/trunk@1040294 b8457f37-d9ea-0310-8a92-e5e31aec5664