Merge branch 'dev' into sb/#148-replacingInvalidGridException

Author: ckittl

src/test/groovy/edu/ie3/datamodel/io/sink/InfluxDbSinkIT.groovy

@@ -34,7 +34,7 @@ import java.time.ZonedDateTime
 class InfluxDbSinkIT extends Specification {
 
 	@Shared
-	InfluxDBContainer influxDbContainer = new InfluxDBContainer("latest")
+	InfluxDBContainer influxDbContainer = new InfluxDBContainer("1.8.4")
 	.withAuthEnabled(false)
 	.withDatabase("test_out")
 	.withExposedPorts(8086) as InfluxDBContainer

src/test/groovy/edu/ie3/datamodel/io/source/influxdb/InfluxDbWeatherSourcePsdmIT.groovy

@@ -25,7 +25,7 @@ import spock.lang.Specification
 class InfluxDbWeatherSourcePsdmIT extends Specification implements WeatherSourceTestHelper {
 
 	@Shared
-	InfluxDBContainer influxDbContainer = new InfluxDBContainer("latest")
+	InfluxDBContainer influxDbContainer = new InfluxDBContainer("1.8.4")
 	.withAuthEnabled(false)
 	.withDatabase("test_weather")