Working on CalibrationMetric + added null pointer checks to some classes
Intermediate work on CalibrationMetric and PlotMaker to plot
side-by-side spec amps and phase
Making progress on CalibrationMetric ... added new class PSD.java
Fixed some details in PSD.java and CalibrationMetric
Fixed bug in Sequence that was wiping out miniseed data in the case
of redundant miniseed records at the start/end of the file.
Made more progress on CalibrationMetric and PlotMaker