[violin] adapted ViolinPlot for 2 datasets
[report,combine tables] added some options to report and finalized combinations script for Latex tables
[combine] added functionality to merge latex tables from different CMIP5 experiments
[analysis] BUG fixed that monthly labels for globale mean timeseries were missing
[sis.ini] added CLARASAL
[models] added functionality to save Model object to netCDF files
[bench] implemented saving of mean model