add model path

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

...a/gov/usgs/earthquake/nshmp/www/hazard/DisaggService.java

...a/gov/usgs/earthquake/nshmp/www/hazard/HazardService.java

...earthquake/nshmp/www/source/FeatureCollectionService.java

...gov/usgs/earthquake/nshmp/www/source/FeaturesService.java

...v/usgs/earthquake/nshmp/www/source/LogicTreesService.java

...ava/gov/usgs/earthquake/nshmp/www/source/MfdsService.java

...ava/gov/usgs/earthquake/nshmp/www/source/RateService.java

...a/gov/usgs/earthquake/nshmp/www/source/SourceService.java