Allow plurals for two strings
Allow plurals for two strings

Need this for some language.

https://bugzilla.gnome.org/show_bug.cgi?id=713838

emersion/geary,aatishnn/geary,githubnemo/geary,jimbonator/geary,mpdeimos/geary,AtticHacker/geary,robol/geary,martinra/geary,martinra/geary,emersion/geary,aatishnn/geary,jimbonator/geary,rschroll/geary,githubnemo/geary,tshikaboom/geary,glebihan/geary,jimbonator/geary,mjog/geary,abn/geary,mjog/geary,mjog/geary,robol/geary,githubnemo/geary,emersion/geary,robol/geary,aatishnn/geary,tshikaboom/geary,rschroll/geary,MohamedIM/geary-unofficial,martinra/geary,tshikaboom/geary,glebihan/geary,kpiwko/geary,AtticHacker/geary,geekvigilante/geary,AtticHacker/geary,glebihan/geary