Added: field settings and validator configuration to FieldDefinition* schemas
Updated: serializeFieldSettings() and serializeValidatorConfiguration() needs to be used by field definition create and update structs
Fixed: hash elements type
Fixed: fieldSettings and validatorConfiguration type is xsd:anyType
Fixed: expectations after changes to FieldTypeSerializer
Merge pull request #243 from ezsystems/REST-spec-field-hashes

REST: Add field settings and validator configuration to FieldDefinition* schemas