- update to 3.490:
- Fix to imcompress.c. It now turns off quantization if ZSCALE
and ZZERO columns are missing. Treatment will be the same as
if ZQUANTIZ were set to 'NONE', even if ZQUANTIZ is present
and set to something else.
- Added mutex to fits_execute_template() function so that the
creation of files using ASCII templates will be thread safe.
- In fpack when using -table flag, replaced warning message with a
more detailed description mentioning FITS format update.
- Added flag to CMake builds to disable curl dependency. Also
only add CURL_LIBRARIES to CMake link target if curl is found.
- Minor adjustment to download progress output.