move utils within hlvf namespace
add test_utils
utils: templated vec2str
add emacs c++ line to headers
tuple objects: add setters tigh/source/etcone/ptcone
EventFlags: add obj-level flags
TupleMaker: propagate tight/source/cone to FourMom
MatrixPrediction: fill tuple
dataset: loosen is_data,is_mc requirements (group role naming)
fix sample names n0155

drop duplicate group-susy and trailing '/'
submit: add matrix_predction case and template
submitJobs: invert logic overwrite