change condition
reset m_to before fresh pmt data.
fix the bug of caculating the inital argument
Fix a bug of using pmt data with "Used"=0 when initializing the t0
Delete some dated comment.
Seperate the set of range for inital arguments
Change freshPmtData_fromfile to freshPmtData_withMuonSim.
update
Add a TEST flag
Add maximum likelihood method