Announcement for the replacement of the PACIAE 2.1 and PACIAE 2.2 series

We replace the old PACIAE 2.1 and PACIAE 2.2 program series with new ones, respectively. In the new program series, the method of creation of the partonic initial state is changed, an option for calling PYEVNT or PYEVNW in PYTHIA is added, and the few bugs in the calculation for the reduction of strange quark suppression are corrected. Previous versions of this program (AEKI_v2_0 and AEKI _v2_2) may be found at http://dx.doi.org/10.1016/j.cpc.2012.12.026 and http://dx.doi.org/10.1016/j.cpc.2015.01.022 respectively.