javadoc cleanup; added figs; removed stale licenses; fixed bug in site arg processing

build.xml

src/org/opensha2/calc/Site.java

src/org/opensha2/eq/fault/scaling/MagAreaRelDepthDep.java

src/org/opensha2/eq/fault/scaling/MagLengthRelationship.java

...org/opensha2/eq/fault/scaling/MagScalingRelationship.java

...pensha2/eq/fault/scaling/impl/CA_MagAreaRelationship.java

...a2/eq/fault/scaling/impl/Ellsworth_A_WG02_MagAreaRel.java

...a2/eq/fault/scaling/impl/Ellsworth_B_WG02_MagAreaRel.java

...sha2/eq/fault/scaling/impl/HanksBakun2002_MagAreaRel.java

.../eq/fault/scaling/impl/PEER_testsMagAreaRelationship.java

.../opensha2/eq/fault/scaling/impl/Shaw_2007_MagAreaRel.java

.../opensha2/eq/fault/scaling/impl/Shaw_2009_MagAreaRel.java

...2/eq/fault/scaling/impl/Shaw_2009_ModifiedMagAreaRel.java

...ha2/eq/fault/scaling/impl/Somerville_2006_MagAreaRel.java

...ha2/eq/fault/scaling/impl/WC1994_MagAreaRelationship.java

...2/eq/fault/scaling/impl/WC1994_MagLengthRelationship.java

...2/eq/fault/scaling/impl/WGCEP_2007_PowLaw_MagAreaRel.java

src/org/opensha2/eq/fault/surface/Container2D.java

src/org/opensha2/function/DiscretizedFunc.java

src/org/opensha2/function/XY_DataSet.java