[l10n] Updated Estonian translation
[l10n] Updated Estonian translation

Pecisk/libgdata-gtasks,pwithnall/libgdata,GNOME/libgdata,Distrotech/libgdata,pwithnall/libgdata,Pecisk/libgdata-gtasks,Distrotech/libgdata,Pecisk/libgdata-gtasks,Distrotech/libgdata