Removed obsolete property in EzPublishCoreExtension
Fixed EZP-20010 - Missing locale and translation support in Twig & Public API, locale mapping needed
EZP-20010 - LocaleConverter now uses PSR3 logger
EZP-20010 - Added semantic configuration to be able to easily add custom locales to the map
EZP-20010 - Removed empty line
Merge pull request #267 from ezsystems/locale_conversion

Fixed 20010 - Missing locale and translation support in Twig & Public API, locale mapping needed