Mcs 24jun
Replaced the Spectrum,Image and Cube versions of set_wcs() with a new function, DataArray.set_wcs(). Updated the documentation of the .data, .var and .mask DataArray attributes. Renamed rebin_mean() as rebin() in Spectrum, Image and Cube.
Replaced the Spectrum,Image and Cube versions of set_wcs() with a new function, DataArray.set_wcs(). Updated the documentation of the .data, .var and .mask DataArray attributes. Renamed rebin_mean() as rebin() in Spectrum, Image and Cube.