Added an non-empty target attribute to encyclopedia links

git-svn-id: https://plugins.svn.wordpress.org/encyclopedia/trunk@787526 b8457f37-d9ea-0310-8a92-e5e31aec5664
Removed empty "Add_Meta_Boxes" function

git-svn-id: https://plugins.svn.wordpress.org/encyclopedia/trunk@791250 b8457f37-d9ea-0310-8a92-e5e31aec5664