GitLab

- first step towards multiple dt in single track

When stashing and popping the bunch (needed for autophasing) then we have to do this with all cores even if some don't own any particles. The reason is that update is called which needs communication.

In autophase we stash the bunch and create a single particle on node 0. Thereafter we call itsBunch->update(). When OPAL is run in parallel then it can happen that this single particle is moved from node 0 to some other node. This we have check and act accordingly.

- fix output of number of particles (suppress warning about number of particles on Beam command where there shouldn't be one)

The bunch offsets are taken into account; linear interpolation is implemented in fieldsolver when using H5 geometry