merge towards working docs

config/cluster.py

cycled_exp.py

dartwrf/assim_synth_obs.py

dartwrf/create_obsseq.py

dartwrf/link_dart_rttov.py

dartwrf/obsseq_2dim.py

dartwrf/obsseq_to_netcdf.py

dartwrf/prepare_namelist.py

dartwrf/prepare_wrfrundir.py

dartwrf/utils.py

dartwrf/workflows.py