Using AbstractRunnableComponent TreeIterator creation.
Started implementing real sequence business logic
Fixed test after new tree iterator model.
Merge branch 'master' of github.com:statsbiblioteket/newspaper-batch-structure-checker

Conflicts:
	src/main/java/dk/statsbiblioteket/newspaper/eventhandlers/BilledIDSequenceChecker.java
	src/main/java/dk/statsbiblioteket/newspaper/eventhandlers/CompleteCheckFactory.java
	src/main/java/dk/statsbiblioteket/newspaper/eventhandlers/WorkshiftISOTargetChecker.java