[ALLI-2890] Changed deduplication to check format before anything else. This means that e.g. records with matching ISNB but different format won't be considered duplicates anymore.
Display information on slowly deduplicated records only when verbose mode is enabled.
Code style fixes.
[ALLI-2914] Fixed a bug that caused component parts to sometimes miss update_needed field and be omitted from Solr updates.
Removed separate Solr update routine for use with dedup disabled since the dedup routine can handle that just as well.