Updated welcome screen

git-svn-id: https://plugins.svn.wordpress.org/easy-digital-downloads/trunk@978005 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixed welcome screen

git-svn-id: https://plugins.svn.wordpress.org/easy-digital-downloads/trunk@978010 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixed welcome screen

git-svn-id: https://plugins.svn.wordpress.org/easy-digital-downloads/trunk@978011 b8457f37-d9ea-0310-8a92-e5e31aec5664