New:
---

Polygon reduction for topography and ground plate isosurface. Reduction level
for buildings can be chosen with parameter cluster_size. (init_dvrp)

init_dvrp, header, modules, package_parin


Changed:
-------

Output of messages replaced by message handling routine.
First constant in array den also defined as type double. (eqn_state_seawater)

advec_particles, eqn_state_seawater, sort_particles


Errors:
------

Bugfix: several tail counters are initialized, particle_tail_coordinates is
only written to file if its third index is > 0, arrays for tails are allocated
with a minimum size of 10 tails if there is no tail initially (init_particles,
advec_particles)

Bugfix: pressure included for profile output (check_parameters)

advec_particles, check_parameters, init_particles