Merge branch 'master' into docker_and_kubectl_support_in_devcontainer

Author: Robert Fujara

app/bin/dltk/test/cases.py

@@ -10,7 +10,7 @@
 from dltk.core.algorithm.test_method_api import *
 from dltk.core.deployment.test_deployment_api import *
 from dltk.runtime.base.test_base import *
-from dltk.runtime.spark.test_spark import *
+#from dltk.runtime.spark.test_spark import *
 
 test_names = []
 for name in dir():