fix ModelConfig::GetSnapshot to just retrieve the snapshot in a an argset and not doing also a Load.  use instead ModelCOnfig::LoadSnapshot for lofing the snapshot values 
fix ModelConfig::GetSnapshot to just retrieve the snapshot in a an argset and not doing also a Load. 
use instead ModelCOnfig::LoadSnapshot for lofing the snapshot values 

Fix also the Print method to print in the default stream

Thanks to Tim Adye for spotting these problems (see http://root.cern.ch/phpBB3//viewtopic.php?f=15&t=14843 )


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@44696 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT