grids; point sources; asyn caclculations; cleanup

src/org/opensha2/calc/AsyncCalc.java

src/org/opensha2/calc/Calcs.java

src/org/opensha2/calc/GridCalc.java

src/org/opensha2/calc/GridTableCalc.java

src/org/opensha2/calc/GroundMotions.java

src/org/opensha2/calc/HazardCurveSet.java

src/org/opensha2/calc/InputList.java

src/org/opensha2/calc/NehrpTestCity.java

src/org/opensha2/calc/Transforms.java

src/org/opensha2/calc/Vs30.java

src/org/opensha2/data/Data2D.java

src/org/opensha2/data/Data3D.java

src/org/opensha2/data/DataTables.java

src/org/opensha2/eq/model/AreaSource.java

src/org/opensha2/eq/model/GmmSet.java

src/org/opensha2/eq/model/GridParser.java

src/org/opensha2/eq/model/GridSourceSet.java

src/org/opensha2/eq/model/PointSource.java

src/org/opensha2/eq/model/PointSources.java

src/org/opensha2/gmm/Gmm.java