cleanup

...ov/usgs/earthquake/nshmp/aws/HazardResultSliceLambda.java

...sgs/earthquake/nshmp/aws/HazardResultsMetadataLambda.java

.../usgs/earthquake/nshmp/aws/HazardResultsSlicerLambda.java

...va/gov/usgs/earthquake/nshmp/www/DeaggEpsilonService.java

...main/java/gov/usgs/earthquake/nshmp/www/NshmpServlet.java

src/main/java/gov/usgs/earthquake/nshmp/www/ServletUtil.java

src/main/java/gov/usgs/earthquake/nshmp/www/WsUtil.java

...main/java/gov/usgs/earthquake/nshmp/www/XY_DataGroup.java

...ain/java/gov/usgs/earthquake/nshmp/www/meta/Metadata.java