[test_region] additional tests
[test_polygon] new tests
[region] added xcoords ycoords
updated some docs
merged in report.py
modified config test
[plots_basic] minor edits
[violin] added class for binned Violin plotting
adapted test_netcdf
[mapping,data] adapted several additional arguments
removed features dir
adapted test_models.py
adapted test_plots
adapted netcdf.py
[test_plots] fixed invalid referecne
removed FEATURES
[doc] added test information in documentation
[test_geostatistic] added additional tests
[data] minor chenge to apply_mask
merged utils