Remove R code; STILT ObsOp in Python

ctdas-stilt.jb

ctdas-stilt.log

ctdas-stilt.py

ctdas-stilt.rc

da/analysis/expand_fluxes.py

da/analysis/expand_fluxes.py.bak

da/analysis/merge_ctdas_runs.py

da/analysis/merge_ctdas_runs.py.bak

da/analysis/siteseries.py

da/analysis/siteseries.py.bak

da/analysis/summarize_obs.py

da/analysis/summarize_obs.py.bak

da/analysis/time_avg_fluxes.py

da/analysis/time_avg_fluxes.py.bak

da/analysis/tools_country.py

da/analysis/tools_country.py.bak

da/analysis/tools_regions.py

da/analysis/tools_regions.py.bak

da/analysis/tools_time.py

da/analysis/tools_time.py.bak