Typo fix
'Mark as read during scrolling down' rewritten

Using jQuery queue, no need for some weird timeout mechanics
Much more reliable now
The header was not enhanced by jQueryMobile

Upstream commit: mboinet/ttrs-mobile@55bc11122c464abdf037093c602b36e4ad585a14
Nested categories workaround

Upstream commit: mboinet/ttrs-mobile@9944b2a65de8120963eab7a99a672dc0b9444f09