covariates preparation script, modifications to handle LST inputs and output directory

LST processing function, test and modifications

LST processing R function, initial commit, calls to python scripts

master script, calling python scripts from R function

master script, adding call to python scripts

initial commit, script for grass set to access python in R

handling modis dowloading outputs

splitting LST climatology script - downloading of modis tiles

splitting LST script-climatology calculation

LST downloading and climatology python script passing arguments from shell