Translation Fallback

*Title: Translation Fallback.

*Incentive:

It might be needed to cirucumvent the need of having ane extra translation file, if the translation already exists for another locale.


*Documentation:

A siteaccess configured with ger-CH locale can make use of the ger-DE translation file.
FallbackLanguages defines the available translation fallbacks of the QT ( .ts )
translation files. If the this no translation available for e.g. ger-CH
the ger-DE translation file will be requested for the translation.

*Configuration:

Sample configuration:

This is case ger-CH is the current locale and ger-DE is the fallback translation.

### i18n.ini.append ###################################################

[TranslationSettings]
FallbackLanguages[ger-CH]=ger-DE

#######################################################################

*Logic:

If a translation file can't be found it will check an alternative location for finding a proper translation.

*Implementation details:

*Known limitations: