cleanup
ref #8248 Check for existing media and references
ref #8248, #6774 Fix order of term import
ref #8248 Add character to export (partially)
ref #8248, #6774 Improve import/export performance
ref #8248, #6774 Add progress monitor to import/export
ref #8248, #6774 Add media to import/export
ref #8248 Only add term to vocabulary if term is newly created
ref #8248, #6774 Fix bean names
ref #8248 Implement termvocabulary import