1.4.6 update

changelog in readme.txt

git-svn-id: https://plugins.svn.wordpress.org/book-review-library/trunk@830884 b8457f37-d9ea-0310-8a92-e5e31aec5664
1.4.7 update

changelog in readme.txt

git-svn-id: https://plugins.svn.wordpress.org/book-review-library/trunk@830928 b8457f37-d9ea-0310-8a92-e5e31aec5664