new screenshot

git-svn-id: https://plugins.svn.wordpress.org/vertical-news-scroller/trunk@916543 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt changes

git-svn-id: https://plugins.svn.wordpress.org/vertical-news-scroller/trunk@916544 b8457f37-d9ea-0310-8a92-e5e31aec5664