fix warnings & mixed protocols warning

git-svn-id: http://plugins.svn.wordpress.org/wordpress-mu-domain-mapping/trunk@661430 b8457f37-d9ea-0310-8a92-e5e31aec5664
remove support for pre 3.1, update for 3.5 WP install in own folder

git-svn-id: http://plugins.svn.wordpress.org/wordpress-mu-domain-mapping/trunk@673229 b8457f37-d9ea-0310-8a92-e5e31aec5664
* Replace HTTPS checks with is_ssl() checks
* Fix typo in Javascript login loader


git-svn-id: http://plugins.svn.wordpress.org/wordpress-mu-domain-mapping/trunk@685582 b8457f37-d9ea-0310-8a92-e5e31aec5664
Bump stable tag and version tested


git-svn-id: http://plugins.svn.wordpress.org/wordpress-mu-domain-mapping/trunk@685605 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated changelog


git-svn-id: http://plugins.svn.wordpress.org/wordpress-mu-domain-mapping/trunk@685607 b8457f37-d9ea-0310-8a92-e5e31aec5664