Added the {all, []} and {all, [{cat,Cat}]} search, to return all rscs (of a category) by descending id.
Added the {all, []} and {all, [{cat,Cat}]} search, to return all rscs (of a category) by descending id.

erlanger-ru/erlanger-ru.meta,erlanger-ru/erlanger-ru.meta,erlanger-ru/erlanger-ru.meta,erlanger-ru/erlanger-ru.meta,erlanger-ru/erlanger-ru.meta