suns.py script (and Point.get_text()) show unscaled values

[mossblaser]

The Point.get_text() prints value and not cvalue resulting in unscaled values being printed by the suns.py script.

This leads the pysunspec2 version of this script to produce rather alarming reports of my little rooftop solar array pushing north of 52000 A (rather than the scaled figures shown by the v1 release of this library).