Release 2.2

The following changes have been made in this release.

• A bug in the astrometry reading software has been fixed. This led to the application of CDELT1 and CD1_1 scales to the wavelength range of some spectra (notable those produced by IRAF), which meant that the range was underestimated by a scale CDELT1.

• You can now specify the spectrum type on the command-line using the --type option. Valid values are: fits, hds, text, hdx, table and line ids.

• You can now open a spectrum using a URL, so spectra stored on remote servers can be downloaded and displayed.

• The handling of 2D and 3D input data has been enhanced. Previously such data was just "vectorized" (that is laid out line-by-line and displayed as a single spectrum ), now such data is collapsed down onto the dispersion axis (if one can be determined). For 3D data each image plane is collapsed in a similar fashion. You can also choose to extract each line as a spectrum.