first skeleton
first commit, working on it with Z/gamma
added computeZinvFromGamma
added operator+= and operator/=
Merge pull request #7 from MT2Analysis/maria

Maria
Merge branch 'MT2Analysis2015_RandD' of https://github.com/MT2Analysis/MT2Analysis2015 into pandolf
fixed bug
Merge pull request #8 from MT2Analysis/pandolf

Pandolf
nevents is int now
Merge pull request #9 from MT2Analysis/pandolf

nevents is int now
fixed region comparison in operators (was with pointers, not correctly with objects)
minor change to a printout in case of error
Merge pull request #10 from MT2Analysis/pandolf

Pandolf
using t1 += t2 to avoid crash (WHY DOES IT WORK?????)
passing to copy constructor from reference and not pointer - better
taking name from lhs
Merge pull request #11 from MT2Analysis/pandolf

Pandolf
implemented operator=
prove con operator= - not working yet
Bug-fix