[MERGE+FIX] fixes for translations,sequence,copy,error messages - some patches...

[MERGE+FIX] fixes for translations,sequence,copy,error messages - some patches courtesy of Margarita Manterola and Don Kirkby

lp bug: https://launchpad.net/bugs/672130 fixed
lp bug: https://launchpad.net/bugs/663775 fixed
lp bug: https://launchpad.net/bugs/673194 fixed
lp bug: https://launchpad.net/bugs/663977 fixed

bzr revid: odo@openerp.com-20101130110940-0tf6ra0uwhiptieb