Added option to add a dicm support user

git-svn-id: https://plugins.svn.wordpress.org/dicmdk-toolbox/trunk@1033423 b8457f37-d9ea-0310-8a92-e5e31aec5664
update

git-svn-id: https://plugins.svn.wordpress.org/dicmdk-toolbox/trunk@1033424 b8457f37-d9ea-0310-8a92-e5e31aec5664