Added WKT as an option for lcoating assets
Added mappable? and geo_locatable? properties to geo_locatable assets
Fixed issue with initializing assets without default properties
Added system params for search path and search units
Fixed copy to create a deep copy of the geometry field if asset is geo_locatable
Removed lat and long fields from geo_locatable assets in favor of using geometry fields
Added config param to set the default SRID for new gometries
Fixes to location reference service
Changed asset base class to use asset_key as URL parameter