Country and Currency collections (Deprecation)

Included in this release:

• Countries: Added a country collection accessible via Localization::createCountries().
• Countries: Added the ISO_CODE constant to all country classes.
• Countries: Fixed some separator character mixups.
• Locales: Added the LOCALE_NAME constant to all locale classes.
• Locales: Added the LocaleInterface interface.
• Locales: Added the es_MX locale.
• Currencies: Added the CurrencyInterface interface.
• Currencies: Added the ISO_CODE constant to all currency classes.
• Currencies: Added getCountries().
• Currencies: Added isNamePreferred().
• Currencies: Added getPreferredSymbol().
• Currencies: Improved template-based formatting.
• Generator: Fixed clientside files being regenerated every time.

Currency changes

Currencies can now be accessed without a country context for accessing basic
information. For number formatting, a country context is still required:
Get the currency from a country object for the added functionality.

Deprecations

• Localization_Currency::getCountry(), no replacement planned.
• Localization::createCountry() => Localization::createCountries()->getByID()
• CountryInterface::getCurrencyID() => getCurrencyISO()
• Localization_CountryInterface => CountryInterface
• Localization_Country => CountryInterface or BaseCountry
• Localization_Currency => CurrencyInterface or BaseCurrency
• BaseCurrency::isCurrencyKnown() => Localization::createCurrencies()->idExists()
• Localization_Currency_Number => CurrencyNumberInfo
• Localization_Event_LocaleChanged => LocaleChanged