Location Updates

Resolves #59 (closed)

Breaking changes

The following method signatures have been updated:

• geo.Location.create(lat, lon) --> Location.create(lon, lat)
• geo.Location.create(lat, lon, depth) --> Location.create(lon, lat, depth)
• geo.LocationList.Builder.add(lat, lon) --> LocationList.Builder.add(lon, lat)
• geo.LocationList.Builder.add(lat, lon, depth) --> LocationList.Builder.add(lon, lat, depth)
• calc.Site.Builder.location(lat, lon) --> Site.Builder.location(lon, lat)
• geo.GriddedRegion.initGrid(latSpacing, lonSpacing) --> geo.GriddedRegion.initGrid(lonSpacing, latSpacing)