LocaleEditor cannot parse language tag with script like zh-Hans

[aperrillat]

When I tried to load locales from application.yml to List<Locale>, Spring Framework's LocaleEditor is called to map it, but locales with scripts like zh-Hans or zh-Hant are not handled correctly because the locale is not loaded with the Locale.forLanguageTag method.

In method setAsText of LocaleEditor, the call to StringUtils.parseLocaleString should probably be replaced with StringUtils.parseLocale like it is in StringToLocaleConverter.