Sizzle: fixes test fails in IE6/7
Sizzle: fixes test fails in IE6/7

Karyotyper/jquery,jquery/jquery,jcutrell/jquery,praveen9102/Shazam,eburgos/jquery,demetr84/Jquery,gnarf/jquery,demetr84/Jquery,roytoo/jquery,jquery/jquery,chitranshi/jquery,praveen9102/Shazam,RubyLouvre/jquery,npmcomponent/component-jquery,sancao2/jquery,jquery/jquery,diracdeltas/jquery,diracdeltas/jquery,eburgos/jquery,chitranshi/jquery,npmcomponent/component-jquery,diracdeltas/jquery,rwaldron/jquery,sancao2/jquery,dtjm/jquery,sancao2/jquery,rwaldron/jquery,isaacs/jquery,roytoo/jquery,eburgos/jquery,roytoo/jquery,quiaro/request-agent,Karyotyper/jquery,dtjm/jquery,Karyotyper/jquery,RubyLouvre/jquery,isaacs/jquery,gnarf/jquery,jcutrell/jquery