replace icon.png

git-svn-id: https://plugins.svn.wordpress.org/post-carousel-slider/trunk@1020293 b8457f37-d9ea-0310-8a92-e5e31aec5664
Change the version number

git-svn-id: https://plugins.svn.wordpress.org/post-carousel-slider/trunk@1020299 b8457f37-d9ea-0310-8a92-e5e31aec5664