Release version 1.0.4

git-svn-id: https://plugins.svn.wordpress.org/ig-pagebuilder/trunk@843015 b8457f37-d9ea-0310-8a92-e5e31aec5664
Release version 1.0.4

git-svn-id: https://plugins.svn.wordpress.org/ig-pagebuilder/trunk@843017 b8457f37-d9ea-0310-8a92-e5e31aec5664