Remove InformationInterface, logic now in API

	modified:   app/api/api.rb
	deleted:    app/models/information_interface.rb
	modified:   app/models/information_providers/database_info_provider.rb
	modified:   app/models/information_providers/provider_lookup_error.rb
Merge branch 'development' of github.com:pse4/orange-proton into development
Adapt tests to "work" again

	modified:   spec/models/character_matching_spec.rb