SHERPA release 2.2.2 based on centos7 and mcnet baselayer 1 version 0.1

i.e. Rivet 2.5.3, YODA 1.6.6, Professor 2.2

Configured with --enable-mpi --enable-pythia --prefix=/usr/local --enable-ufo --enable-hepmc2=/usr/local --enable-rivet=/usr/local CXXFLAGS=-std=c++11

See here for instructions: https://sherpa.hepforge.org/trac/wiki/Docker⁠