Merge branch 'stable-3.4'
* stable-3.4: (24 commits)
ParsingQueuePersistenceIT: fix google-common imports
EiffelEventParser: fix javadoc
Persist failed tasks
ParsingQueue: Save failed parsing-tasks
Keep queued tasks to persist in a Set and not a List
Correct spelling persistance -> persistence
ParsingQueue: Move scheduling logic into worker
Fix EiffelEventParserIt#artcQueued
Refactor EiffelEventParser and implementations
EiffelConfig: fix invalid log format
EventKey: add missing cases to switch/case
Fix event-name in routing key
Persist parsing-queue on plugin stop
EiffelEventParsingQueue: Google-java-format
Refactor EiffelEventParserIT
Make EiffelEventParsingQueue#scheduleArtcCreation private
Extract private method to schedule SCS from submit-event
Rename EiffelEventParser and EiffelEventParserIf
Extract interface from EiffelEventParser
Extract the task description from EventParsingWorker
...
Change-Id: I8d6f26aef920b9b7ccd967a5f7f164a02b9c6650
