duplicate translation in both upper case and lower case at case-sensitive system.

once install from bower, the pickadate/lib/translation folder will include both upper case and lower case translation files in linux system, it will coz ember compile system failed because it confused in same name, how could I remove the duplicate translations? (compile in server and i only allowed to commit bower.json file into git, so it not possible to remove the translation file directly, sever will download it on every compile)