debugging leftover removed
Merge git://github.com/espressomd/espresso into shanchen
Reverted particle/fluid for backward compatibility
with shan chen we need to take into account
the full hydrodynamic velocity, otherwise
parasite currents at the interface border are
forcing particles in an unphysical  way.
Added SHANCHEN test configuration. Also LBGPU with most features
Merge branch 'shanchen' of https://github.com/Marcello-Sega/espresso
Owen's fix for SHANCHEN