updating plugin 

git-svn-id: https://plugins.svn.wordpress.org/ns-shortcodes/trunk@1013229 b8457f37-d9ea-0310-8a92-e5e31aec5664
update version

git-svn-id: https://plugins.svn.wordpress.org/ns-shortcodes/trunk@1013230 b8457f37-d9ea-0310-8a92-e5e31aec5664
rectify README.txt

git-svn-id: https://plugins.svn.wordpress.org/ns-shortcodes/trunk@1013235 b8457f37-d9ea-0310-8a92-e5e31aec5664