plugin version identification attribute added

git-svn-id: https://plugins.svn.wordpress.org/instant-feedback/trunk@976415 b8457f37-d9ea-0310-8a92-e5e31aec5664
updating version. Making plugin live

git-svn-id: https://plugins.svn.wordpress.org/instant-feedback/trunk@976417 b8457f37-d9ea-0310-8a92-e5e31aec5664