* Allow TranslationFileWriter to follow several superclass levels (fixes PolicyBranch names)
* Bring German and template up to par as baseline
* Framework to feed TranslationFileWriter from UniqueParameterType, also fixes Fountain of Youth
* TranslationFileWriter legacy guessing now _much_ simpler
* Fix "chance to be destroyed by nukes" case
* Fix tests (allTranslationsHaveCorrectPlaceholders goes cross-language)
* Generalized trade route percent bonuses
* Unified two uniques using populationFilter; deprecated a deprecated uniq
* Made some renamings to improve clarity & fixed tests
* Fixed tests again
* Fixed typo
* Unique units abilities that should be inherited by upgrades
* Unique units abilities that should be inherited by upgrades - xlt
* Unique units abilities that should be inherited by upgrades - wiki