Reduction software

A FIEStool master-frame database was made, see

     http://www.not.iac.es/instruments/fies/fiestool/masterframes.html

which is automatically expanding whenever new calibration frames are made using the fies-calibs script.

Some information related to installing FIEStool on MacApple were added. See

     http://www.not.iac.es/instruments/fies/fiestool/faq.html .

Prefabricated master wavelength reference and master order definition files will be added to the FIEStool distribution to help simplify the initial steps in data reduction. It should be investigated how best to reduce simultaneous sky spectra. Also some other improvements are considered.