Added 3 new parameters
    include_passed_messages:  ( Bool ) Include message and stacktrace in Junit XML output
    include_failed_messages: ( Bool ) Include message and stacktrace in Junit XML output
    include_skipped_messages: ( Bool ) Include message and stacktrace in Junit XML output

Enhancements : Stacktrace now exists as an XML subproperty, making XML much cleaner.

If "message" and "stacktrace" properties are empty  in the TestResultMessage object, its relevant subXML objects will not be added, makes XML parsing cleaner.

how to call ? Example code from runbook
notifier:
  - type: html
  - type: env_stats
  - type: junit
    name: junit.lisa.xml
    include_subtest: true
    include_passed_messages: false
    include_failed_messages: true
    include_skipped_messages: true