[FIX] ir.translation: coerce source terms into unicode, to avoid transmitting invalid UTF-8 bytes
[FIX] ir.translation: coerce source terms into unicode, to avoid transmitting invalid UTF-8 bytes

This may happen when trying to translate already translated terms, such as the locale-dependen values provided by strftime

akretion/openerp-server,akretion/openerp-server,akretion/openerp-server