sigma model and other updates

src/org/opensha/calc/AsyncCalc.java

src/org/opensha/calc/Config.java

src/org/opensha/calc/Deagg.java

src/org/opensha/calc/GaussTruncation.java

src/org/opensha/calc/IntensityMeasureLimit.java

src/org/opensha/calc/NamedLocation.java

src/org/opensha/calc/NehrpTestCity.java

src/org/opensha/calc/SigmaModel.java

src/org/opensha/calc/Site.java

src/org/opensha/calc/Transforms.java

src/org/opensha/calc/Utils.java

src/org/opensha/data/AbstractXY_Sequence.java

src/org/opensha/data/ArrayXY_Sequence.java

src/org/opensha/data/XY_Sequence.java

src/org/opensha/eq/fault/surface/RuptureFloating.java

src/org/opensha/eq/model/Config.java

src/org/opensha/eq/model/HazardModel.java

src/org/opensha/gmm/GmmInput.java

src/org/opensha/programs/HazardCurve.java

src/org/opensha/programs/HazardMap.java