Amended EPSG aliases for datum 6182 6184. Amended origin description for 6184. Added area 2779, amended area 1314. Added datums 6615-16 geogCRS 4615-16 projCRS 2942-43. Deprecated datum 6185 geogCRS 4185 projCRS 2191. Added datum 6904, geogCRS 4904, proj methods 9827-28, proj 19979, CS 6509, projCRS 2963.