Updated Objects.py to support new truth ntuples

It seems that with using a newer version of Reco_trf.py the muons get
reconstructed as mu_value instead of mu_staco_value.
Update Sample to handle new TRUTH_NTUPLEs,

Also fixed Objects.py (the new TRUTH_NTUPLES have no mu_E parameter
Made bin sizes smaller (like CMS)
Added Single diss caller, cosmetic fixes all round