Squashed commit of the following:

commit c71b8c06fb01b65280249f78c7526b6593bb000f
Author: bgrins <briangrinstead@gmail.com>
Date:   Sun Mar 10 19:21:51 2013 -0500

    style updates

commit b5938e89d7ff29e95f1c0854d83ed05249cb4f42
Author: bgrins <briangrinstead@gmail.com>
Date:   Wed Feb 6 18:01:44 2013 -0600

    add check for mouseup in another frame

commit 3d2f001e0a9ee98344657443c4fb1db5c4c4bfd6
Author: bgrins <briangrinstead@gmail.com>
Date:   Wed Feb 6 09:39:53 2013 -0600

    update demo page to show events

commit 2bbda07bf19a69f213093d3d5b081e5e7d688d2e
Author: bgrins <briangrinstead@gmail.com>
Date:   Wed Feb 6 09:20:25 2013 -0600

    add iframe within iframe

commit 3f46ee8d0464aa5953510d140d91788f60d135d8
Author: bgrins <briangrinstead@gmail.com>
Date:   Wed Feb 6 09:12:25 2013 -0600

    mouseHandled=false on _mouseUp, since the document binding at the top doesnt get fired if the mouseup happens in an iframe

commit 88802dbc88f065001550362ba6dd8cdfae95aa95
Author: bgrins <briangrinstead@gmail.com>
Date:   Wed Feb 6 09:03:13 2013 -0600

    import initial fix from http://bugs.jqueryui.com/ticket/5727

commit b83292331f65c345c34d3115c064d5804cc7341e
Author: bgrins <briangrinstead@gmail.com>
Date:   Wed Feb 6 08:45:42 2013 -0600

    add visual tests
Merge branch '5727' of github.com:bgrins/jquery-ui into 5727