Base language
From iDempiere en
Cut from ticket IDEMPIERE-136
"We have now a process in System called Change Base Language - you can use this process to swap en_US to another base language of your preference, or if you want a system without base language just set it to a non-login language. PO.updateTranslations and Synchronize Doc Translation were changed to synchronize any change on the master table (i.e. C_Charge) to the corresponding translation table (i.e. C_Charge_Trl) for the language selected by tenant. Pending TODO: VerifyLanguageConfiguration process - as a helper for troubleshooting language problems"