Add Updated Cross Section printout to default sequence, and update GenParticle selection for GenJets

"Loose Ends" from the generator side for Run 2 MC production:

1) Add updated cross section analyzer to the default sequence so that printout in interactive running has the best estimate of the cross section in all combinations of lhe/not, matching/not, gen filter/not.

2) Change config for GenJets to no longer exclude resonance decay products, since this cannot be done in a robust and generator-agnostic way.  (Old config would lead to decay products being excluded or not depending on generator and event properties.)


That's real XML as apposed to the pseudo-xml genreflex allows.I believe the first step genreflex does when parsing a file is change the 'pseudo-xml' into 'xml' and then passes the updated buffer to a real xml parser.