Remove obs4MPs example ECMWF .nc file
add README information to get access to ECMWF and verifcation.py program to extract ECMWF ERA-Iterim year 2013 data file.
Remove nc files from TRMM data.
add README to provide information on how to retrieve TRMM data from GES DISC.
TRMM.data contains a list of URL used by the wget command.