New:
---
humidity=.T. is now usable for runs with topography. wall_humidityflux and
wall_scalarflux are the corresponding new parin arrays.
(check_parameters, init_3d_model, parin)

Large scale vertical motion (subsidence/ascent) can be applied to the
prognostic equation for the potential temperature. (check_parameters, header,
Makefile, modules, parin, prognostic_equations, read_var_list, subsidence,
write_var_list)

A simple method for installing and running palm (with limited features)
has been added. (Makefile, palm_simple_install, palm_simple_run)

check parameters, header, init_3d_model, Makefile, modules, parin, prognostic_equations, read_var_list, write_var_list
new: palm_simple_install, palm_simple_run, subsidence


Changed:
-------
2d-decomposition is default for Cray-XT machines (init_pegrid)

var_ts is replaced by dots_max (modules,init_3d_model)

Every cloud droplet has now an own weighting factor and can be deleted due to
collisions. Condensation and collision of cloud droplets are adjusted
accordingly. (advec_particles)

Collision efficiency for large cloud droplets has changed according to table of
Rogers and Yau. (collision_efficiency)

advec_particles, collision_efficiency, init_3d_model, init_pegrid, modules


Errors:
------
Bugfix: index problem concerning gradient_level indices removed (header)

Dimension of array stat in cascade change to prevent type problems with
mpi2 libraries (poisfft_hybrid)

A loop has been splitted to make runs reproducible on HLRN
systems. (disturb_field)

Bugfix: exchange of ghost points for prho included (time_integration)

Bugfix: calculation of time-averaged surface heatfluxes (sum_up_3d_data)

Bugfix: calculation of precipitation_rate (calc_precipitation)

Bugfix: initial data assignments to some dvrp arrays changed due to error
messages from gfortran compiler (modules)

Bugfix: calculation of cloud droplet velocity (advec_particles)

Bugfix: transfer of particles at south/left edge (advec_particles)

Bugfix: calculation of collision_efficiency (collision_efficiency)

advec_particles, calc_precipitation, collision_efficiency, disturb_field, header, modules, poisfft_hybrid, sum_up_3d_data, time_integration