End generated files with a single newline (that's our convention)
Fixed nasty bug in validators: Because of a nesting issue, all the private methods were defined on Repositext::Validation::Validator instead of each subclass. So methods were being overwritten unintentionally, resulting in baffling validation output.
Cleaned up whitespace
updated Validator::SubtitleImportConsistency to terminate the process in case of text differences between import and content AT. We don't want to proceed with the import if this validation fails.