Find orphaned, RFA'd, RFH'd packages using debtags

field wnpp bugs feed
arts3
astronomy1
aviation2
chemistry4
electronics7
finance2
geography1
linguistics4
mathematics3
physics4
statistics1
biology:bioinformatics0
biology:molecular0
biology:structural0
biology0
computer-science0
genealogy0
geology0
medicine:imaging0
medicine0
meteorology0
religion0