Hide warnings and deprecated notices. Props blobaugh. https://plugins.trac.wordpress.org/browser/wordpress-mu-domain-mapping/branches/0.5.4.3-patches/domain_mapping.php?rev=866466


git-svn-id: https://plugins.svn.wordpress.org/wordpress-mu-domain-mapping/trunk@896454 b8457f37-d9ea-0310-8a92-e5e31aec5664
Escape this too, props blobaugh


git-svn-id: https://plugins.svn.wordpress.org/wordpress-mu-domain-mapping/trunk@896459 b8457f37-d9ea-0310-8a92-e5e31aec5664