renamed the landmask_dir into aux_dir; removed the interpolant from the dependent properties; removed the scriptdir method; implemented the delta method; revised the lon/lat_default methods to produced spatial domains without stupid round-off errors; implemented the oceamask method; implement the option to define the data file in the coast method; added the map_mirroredges method; reviewed the interpolant and spatial_interp methods to fix an issue with nans being added to the interpolated grid (not fixed yet); updated the spatial_mask to consider the buffered ocean mask
renamed the landmask_dir into aux_dir; removed the interpolant from the dependent properties; removed the scriptdir method; implemented the delta method; revised the lon/lat_default methods to produced spatial domains without stupid round-off errors; implemented the oceamask method; implement the option to define the data file in the coast method; added the map_mirroredges method; reviewed the interpolant and spatial_interp methods to fix an issue with nans being added to the interpolated grid (not fixed yet); updated the spatial_mask to consider the buffered ocean mask

jgte/orb,jgte/orb,jgte/orb,jgte/orb,jgte/orb