Return all assets by default + validity metadata
Merge branch 'master' into return_all_assets_by_default_with_validity_metadata

Conflicts:
	digiroad2-geo/src/main/scala/fi/liikennevirasto/digiroad2/asset/asset.scala
	src/main/scala/fi/liikennevirasto/digiroad2/Digiroad2Api.scala
	src/main/scala/fi/liikennevirasto/digiroad2/MapConfigJson.scala
	src/test/scala/fi/liikennevirasto/digiroad2/Digiroad2ApiSpec.scala
Merge pull request #106 from finnishtransportagency/return_all_assets_by_default_with_validity_metadata

Return all assets by default + validity metadata