Added GraphApplicationContext to get rid of undeclared bean errors in IntelliJ.
Fixed Cypher query for VersionRepository.findFirstVersion.
Implemented and fixed methods to make the tests pass on an empty graph database again.
Added execution of "inject-favicon.sh" to "run-tests.sh".
Introduced new variants of "IdDaoSupport.linkTo".
Fixed hashCode of VersionDTO.
Fixed "structure.findRootNodes".
Implemented "node.findChildren".
Implemented "version.findCounters(node)".
Implemented "CounterDAO.copyCounters" and "ObservedDAO.copyCountersFromLastObserved".
Fixed query for "VersionRepository.findUnreadable".