In polCalc_FITS(): Changed pct to pfrac (i.e., I no longer multiply by 100); the FITS files produced are now fractions and not percentages.
Initial polCalc_FITS command now masks based on both sigma_I and sigma_pol.  Now reading in pfrac FITS files since pct FITS files no longer exist.  After reading in pfrac FITS file I now multiply the array by 100 so that the program can proceed.  More tweaks to headers of *vectors.log and *vectors_bolo.log.
Merge remote-tracking branch 'origin'