Bug correction in input_map routine for reading of polarized multi-HDU cut sky FITS files;
windowfile_* qualifiers in alteralm facility.
anafast now produces nine spectra
(TT, EE, BB, TE, TB, EB, ET, BT and BE), instead of six previously,
when analyzing two polarized maps
CFITSIO version 3.20 (August 2009) or more now required
Version 3.31, 2017-01-06