Szabolcs Andrasi

The documentation [says](https://github.com/norman/friendly_id/blob/70e93434b3ec8861866d1b3aa172e7fabc6a3c1c/lib/friendly_id/initializer.rb#L80-L96) that the `should_generate_new_friendly_id?` method is added to the model and therefore it can be overridden if needed (i.e. no need to monkey-patch the gem or send a...