Working on polcCalc_FITS().
Working on method to correctly calculate polarization from the Bayesian PDF of real pol as a function of observed pol.  This will eventually be implemented in polCalc() and polCalcFITS().
Cleaned up, and started doing straight average of angles, rather than weighted.
Added pct_std and pa_diff_std.
Added par['caption_name'] and par['caption'] to print correct name(s) and to print caption or not, respectively.  It now also calculates the stdevs pol_std and frac_std of the polarization intensity and fraction, respectively.  I also now print (a), (b), and (c) on the plots.  I tweaked what is written to the caption as well.
Changed L1551~IRS~5 to L1551~NE.