2.5.9
2.5.8
2.5.7
2.5.6
2.5.5
2.5.4
2.5.3
2.5.2
2.5.1
2.5
2.4.5
2.4.4
2.4.3
2.4.2
2.4.1
Test for sma variable file name
added sma_downloader
fix #12
this tag is relative to API version 2, with url https://cds.climate.copernicus.eu/api/v2