API change: measurements parameter
This minor release simplifies the way the number of Monte Carlo measurements per iteration is passed as input parameter. Instead of the number of measurements per MPI process and accumulator, the desired total number of measurements, i.e. across all MPI processes and accumulators, now has to be specified.
See also https://github.com/CompFUSE/DCA/wiki/Parameters#monte-carlo-integration-parameters.