Update fitEffAcc_trigger.cc

fitEffAcc_trigger.cc now fits the post-cut histogram first, and uses
that to constrain the amount of signal in the pre-cut histogram.
Update ElectrionLocation to match EtaAcceptance

EE is now 1.566 < eta < 2.850, to match the code in
ZShape/Base/EtaAcceptance.cc.

Also add "ALL" case that always returns true, which matches
EtaAcceptance.cc.