Release v0.5.6

Oshinko S2I images used by these templates

These templates use the following oshinko s2i images:

• radanalyticsio/radanalytics-pyspark:v0.5.6 found here
  radanalyticsio/radanalytics-pyspark-py36:v0.5.6 found here
• radanalyticsio/radanalytics-java-spark:v0.5.6 found here
• radanalyticsio/radanalytics-scala-spark:v0.5.6 found here
• radanalyticsio/radanalytics-r-spark:v0.5.6 found here

Apache Spark version

The referenced oshinko s2i images use Apache Spark 2.3.0

Oshinko binary version

The referenced oshinko s2i images use oshinko binary release v0.5.6 found here

Summary of changes in templates

• The selector labels in the sparkjob.json template were modified to fix issue 256 (All jobs created with template oshinko-spark-job fail)

Summary of changes in related images

• The usage scripts for all of the s2i images have been updated
• The spark user id is handled differently now, allowing the nss_wrapper dependency to be dropped
• A non-fatal error in the spark driver log has been removed (#249)