Fix duplicate title_xx cases

[LibertyPaul]

Need to implement a replacement for title_xx in case of duplicate value (as it is now with "Dracula").
1st approach - is to use Alias instead (not sure what to do if the alias is also a duplicate).

[LibertyPaul]

2nd thought - is to keep a list of ignored aliases (hope LF never violates their uniqueness!) and exclude them right after parse.