updating version

git-svn-id: https://plugins.svn.wordpress.org/slickquiz/trunk@849780 b8457f37-d9ea-0310-8a92-e5e31aec5664
refactored draft-publish-preview-revert a bit, made preview an optional step, can now directly save draft and directly publish; closes #35

git-svn-id: https://plugins.svn.wordpress.org/slickquiz/trunk@849781 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme update

git-svn-id: https://plugins.svn.wordpress.org/slickquiz/trunk@849782 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme update changelog

git-svn-id: https://plugins.svn.wordpress.org/slickquiz/trunk@849783 b8457f37-d9ea-0310-8a92-e5e31aec5664