Landing pull request 389. Null elements in clone to avoid memory leak in IE. Fixes #9341.
Landing pull request 389. Null elements in clone to avoid memory leak in IE. Fixes #9341.

More Details:
 - https://github.com/jquery/jquery/pull/389
 - http://bugs.jquery.com/ticket/9341

demetr84/Jquery,sancao2/jquery,eburgos/jquery,RubyLouvre/jquery,demetr84/Jquery,praveen9102/Shazam,praveen9102/Shazam,rwaldron/jquery,Karyotyper/jquery,eburgos/jquery,hoorayimhelping/jquery,Karyotyper/jquery,eburgos/jquery,fat/jquery,scottjehl/jquery,jcutrell/jquery,isaacs/jquery,chitranshi/jquery,Karyotyper/jquery,jquery/jquery,RubyLouvre/jquery,quiaro/request-agent,scottjehl/jquery,roytoo/jquery,dtjm/jquery,sancao2/jquery,gnarf/jquery,rwaldron/jquery,hoorayimhelping/jquery,sancao2/jquery,diracdeltas/jquery,isaacs/jquery,jquery/jquery,dtjm/jquery,chitranshi/jquery,jcutrell/jquery,kpozin/jquery-nodom,diracdeltas/jquery,diracdeltas/jquery,npmcomponent/component-jquery,ilyakharlamov/jquery-xul,fat/jquery,ilyakharlamov/jquery-xul,kpozin/jquery-nodom,roytoo/jquery,gnarf/jquery,jquery/jquery,npmcomponent/component-jquery,roytoo/jquery