API CHANGE: Deprecated SS_List::getRange() in favour of SS_Limitable::limit().
API CHANGE: Introduce SS_Limitable::limit($limit, $offset = 0) as the only modern way of specifying limits; deprecate all others.
API CHANGE: Removed pagination related methods from DataObjectSet and implemented them on PaginatedList.
API CHANGE: Removed DataObjectSet::parseQueryLimit(), this is now implemented as PaginatedList::setPaginationFromQuery().
API CHANGE: Deprecated DataObjectSet::TotalItems in favour of Count().
ENHANCEMENT: Added FirstLink and LastLink to PaginatedList.
MINOR: Updated documentation, and added a how-to on paginating items.