-Fixed shortcode

git-svn-id: https://plugins.svn.wordpress.org/wp-booklet/trunk@857134 b8457f37-d9ea-0310-8a92-e5e31aec5664
-Fixed readme

git-svn-id: https://plugins.svn.wordpress.org/wp-booklet/trunk@857136 b8457f37-d9ea-0310-8a92-e5e31aec5664
-Fixed readme.txt


git-svn-id: https://plugins.svn.wordpress.org/wp-booklet/trunk@857139 b8457f37-d9ea-0310-8a92-e5e31aec5664
-Fixed readme.txt


git-svn-id: https://plugins.svn.wordpress.org/wp-booklet/trunk@857141 b8457f37-d9ea-0310-8a92-e5e31aec5664
-Fixed readme.txt


git-svn-id: https://plugins.svn.wordpress.org/wp-booklet/trunk@857142 b8457f37-d9ea-0310-8a92-e5e31aec5664
-Fixed readme.txt


git-svn-id: https://plugins.svn.wordpress.org/wp-booklet/trunk@857148 b8457f37-d9ea-0310-8a92-e5e31aec5664
-Removed "Use of undefined constant manage_booklet_custom_columns" warning

git-svn-id: https://plugins.svn.wordpress.org/wp-booklet/trunk@860087 b8457f37-d9ea-0310-8a92-e5e31aec5664